10 Best Mini PC With Oculink in 2026

A Mini PC with Oculink is a compact desktop whose direct PCIe connection can bring substantial graphics expansion to a small workspace. Unlike conventional external graphics arrangements that rely on shared USB bandwidth, Oculink provides a dedicated high-speed path for compatible external GPUs and PCIe devices.

The ten systems compared here vary substantially in processor power, memory capacity, storage flexibility, networking, display support, and cooling. We evaluated their published specifications and feature descriptions, focusing especially on Oculink implementation, expansion potential, everyday responsiveness, and suitability for gaming, creative work, and professional multitasking.

The list includes multiple configurations from GMKtec as well as the AOOSTAR MACO and Reatan X8, making it useful for comparing closely related models rather than merely separating products by size. Each selection highlights a different balance of capability, and availability and pricing can change over time.

Top 3 Picks for Best Mini PC with Oculink

Top 10 Best Mini PC with Oculink in 2026 Compared

This side-by-side comparison highlights the processors, memory, storage, Oculink implementations, networking, and display capabilities that distinguish each Oculink-equipped mini PC.

1. GMKtec K15 AI – Balanced Low-Power Expansion

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GMKtec K15 AI

Core Ultra 5 125U

32GB DDR5 memory

512GB PCIe 4.0 SSD

Quad 4K or 8K

The GMKtec K15 AI combines an Intel Core Ultra 5 125U with 32GB of DDR5 memory, a 512GB PCIe 4.0 SSD, and a dedicated Oculink port. Its published specifications position it as a low-energy, highly expandable system rather than a high-power gaming desktop. The processor includes performance, efficiency, and low-power cores, allowing the system to balance office responsiveness with more demanding multitasking and accelerated AI workloads.

Pros

• Efficient 15-watt processor
• Upgradeable dual SO-DIMM memory
• Dedicated Oculink bandwidth
• Dual 2.5GbE networking
• Four-display capability

Cons

• No published customer rating
• Storage capacity is modest

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Memory is a meaningful strength because the system uses two 16GB SO-DIMM modules rather than relying entirely on soldered memory. Its storage layout includes three M.2 2280 expansion positions, while the listed configuration provides 512GB of PCIe 4.0 storage. Display flexibility is also strong: HDMI 2.1, DisplayPort 1.4, and a USB Type-C connection with display functionality can support up to four screens, with HDMI capable of 8K output at 60Hz under compatible configurations.

The central compromise is that 512GB may feel modest for large game libraries, 4K media, and active creative projects, although the available expansion helps preserve the system's longevity. Oculink operates at PCIe x4 speeds and offers a more direct external-GPU path than a bandwidth-sharing USB connection, but buyers still need a compatible enclosure, cable, graphics card, and adequate power arrangement. Its dual 2.5GbE ports and WiFi 6E also make it a capable network appliance or compact workstation.

This is a strong recommendation for someone who prioritizes efficient processing, generous memory, flexible displays, and expandable graphics over maximum onboard gaming power. It is particularly suitable for office use, development, media production, and a compact eGPU workstation. Verify your chosen eGPU enclosure and power requirements before purchase, since Oculink itself does not supply a graphics card or solve external power needs.

A Practical Platform for Compact Workstations

The Core Ultra 5 125U's 15-watt design makes the K15 AI relevant to offices, studios, and home setups where energy use and desk space matter. Its 14-thread platform can handle heavy multitasking while its integrated AI accelerator adds value for compatible local inference and media applications.

Memory and Display Flexibility

The two SO-DIMM modules are easier to service than fully soldered memory, while four-display support reduces the need for a large desktop. This combination suits users who want a small base system that can grow into a multi-screen productivity station.

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2. GMKtec M8 – Efficient Everyday eGPU Platform

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GMKtec M8

Ryzen 5 PRO 6650H

16GB LPDDR5 memory

512GB NVMe SSD

Triple-display output

The GMKtec M8 is a compact Ryzen 5 PRO 6650H system aimed at office productivity, content creation, mainstream gaming, and expandable desktop use. Its six-core, 12-thread processor can boost to 4.5GHz, while Radeon 660M integrated graphics provide enough capability for media playback, general productivity, and suitable gaming workloads. Oculink is the feature that broadens the machine's long-term appeal by providing a dedicated external graphics path.

Pros

• Efficient six-core processor
• Useful integrated Radeon 660M
• Dual 2.5GbE networking
• Three selectable power modes
• Dedicated Oculink connection

Cons

• No published customer rating
• Soldered memory limits upgrades

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The 16GB of LPDDR5 memory runs at 6400MT/s and supports demanding multitasking, while a 512GB NVMe SSD supplies fast local storage. Two M.2 2280 positions allow the installed drive to be complemented with additional compatible storage, with the published description identifying support for up to 8TB in total. Connectivity includes USB4, USB 3.2 Gen2, HDMI 2.0, DisplayPort 1.4, and two 2.5GbE Ethernet ports.

Its main limitation is the soldered LPDDR5 memory, which cannot be replaced or expanded in the conventional manner. Buyers who need 32GB or more for virtual machines, large datasets, or memory-heavy creative applications should plan around that constraint. Another consideration is that Oculink is most valuable when paired with a capable external GPU, adding both the cost and physical bulk of an enclosure and desktop graphics card.

The M8 makes sense for a user who wants a small, efficient base computer and may later add a more powerful GPU. Its dual networking, selectable 28W, 35W, and 40W modes, and triple-display support make it particularly versatile for offices, laboratories, and compact workstations. It is less suitable for buyers whose priority is maximum memory expandability.

Useful for Work Before Graphics Expansion

The Ryzen 5 PRO 6650H and Radeon 660M combination handles routine office applications, browsing, high-resolution media, and moderate creative demands. Oculink then provides a route to greater graphics capability when software demands exceed the integrated GPU.

Networking That Goes Beyond One Port

Dual 2.5GbE connections are useful for link aggregation, virtualization, firewall functions, or separating network roles. That makes the M8 relevant to advanced home and small-business users rather than only conventional desktop shoppers.

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3. GMKtec M8 1TB – Storage-Ready Compact Workstation

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GMKtec M8 1TB

Ryzen 5 PRO 6650H

16GB LPDDR5 memory

1TB NVMe SSD

Triple-display output

The 1TB GMKtec M8 is the storage-focused version of the Ryzen 5 PRO 6650H mini PC. It retains the same 6-core, 12-thread processor with boosts to 4.5GHz and Radeon 660M graphics, but its larger NVMe drive gives users more room for applications, project files, games, and media without immediately needing another internal upgrade.

Pros

• Generous 1TB storage
• Fast 6400MT/s memory
• Dedicated Oculink interface
• Dual wired networking
• Three performance modes

Cons

• No published customer rating
• Soldered 16GB memory

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Its Oculink port offers a direct PCIe route for an external GPU, while USB4 provides a versatile second high-speed interface for peripherals, docks, data transfer, and display connections. The system can drive three displays through HDMI, DisplayPort, and USB4 with DisplayPort functionality. Dual 2.5GbE ports, WiFi 6E, and USB 3.2 Gen2 make the external interface unusually complete for a small computer.

The primary limitation remains its fixed 16GB of LPDDR5 memory. For office applications, browsing, media, and moderate multitasking, 16GB is generally useful, but heavy virtual-machine use or large professional projects can exhaust it. The system also relies on an external graphics solution for serious gaming, and the appropriate enclosure, power supply, and cable add complexity to that plan.

Choose this M8 configuration when storage capacity matters more than memory upgradeability. It is a sensible compact starting point for creators and developers who want fast local storage now and the option to improve graphics later. Those planning sustained heavy memory loads should instead favor a system with replaceable SO-DIMM modules.

More Space for Active Projects

A 1TB NVMe drive reduces the need to manage projects across external media or continually replace internal storage. This makes the configuration more convenient for video editors, developers, and users maintaining a substantial working library.

A Flexible Upgrade Path for Graphics

Oculink can turn the M8 into a more capable graphics workstation when paired with supported hardware. Because the connection does not share bandwidth with a standard USB display path, it is a sensible foundation for a compact gaming or rendering setup.

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4. GMKtec M8 Base – Streamlined Ryzen Expansion

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GMKtec M8 Base

Ryzen 5 PRO 6650H

16GB LPDDR5 memory

512GB NVMe SSD

Triple-display output

The base GMKtec M8 brings the Ryzen 5 PRO 6650H to users who want a straightforward compact PC with a clear eGPU upgrade route. Its integrated Radeon 660M has 12 compute units and is described as suitable for mainstream gaming, high-resolution playback, and 4K video-editing tasks, giving the system useful capability before any external graphics hardware is added.

Pros

• Familiar M8 platform
• Dedicated external GPU path
• Full-function 40Gbps USB4
• Dual 2.5GbE Ethernet
• Flexible BIOS controls

Cons

• No published customer rating
• Limited fixed memory capacity

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Oculink is joined by a full-function USB4 port rated at 40Gbps. That combination gives users a high-bandwidth route for compatible desktop graphics while retaining a broadly useful interface for docks, storage, charging, and video. The dual 2.5GbE ports can support advanced network arrangements, and the three-display configuration serves trading, editing, research, and general productivity workflows.

The 16GB of LPDDR5 memory cannot be upgraded, so the M8 is best suited to users who can work within that capacity. Its 512GB drive is also more modest, although dual M.2 slots provide room for additional storage. The older one-year warranty statement differs from some newer GMKtec configurations, so buyers should verify the current protection applicable to the exact listing.

This model is a good fit for ordinary productivity, light creative work, and compact systems intended to receive a dedicated GPU later. It offers the familiar M8 feature set without the larger storage of the 1TB version. For buyers needing replaceable memory, substantially more storage, or premium workstation processing, one of the higher-specification alternatives may be a better fit.

A Sensible Entry to Oculink

The M8 Base introduces a capable CPU, modern memory, fast storage, and a dedicated PCIe expansion port in a compact enclosure. It is an appealing option when the system will serve as a general computer before becoming a specialized graphics workstation.

Desktop Controls for Remote Users

BIOS features such as auto power-on, Wake-on-LAN, and adjustable VRAM allocation can be particularly useful in unattended or remotely managed environments. These capabilities add flexibility for workshops, labs, and home servers.

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5. GMKtec K16 32GB – High-Speed Compact Performance

4.4Editor scoreCheck price on Amazon

GMKtec K16 32GB

Ryzen 7 7735HS

32GB LPDDR5 memory

512GB NVMe SSD

Triple-display output

The GMKtec K16 32GB pairs a Ryzen 7 7735HS with 32GB of fast LPDDR5 memory, offering one of the stronger memory configurations in this roundup. The eight-core, 16-thread processor boosts to 4.75GHz, and Radeon 680M integrated graphics make the system capable of light gaming, media creation, and substantial multitasking before an external GPU is introduced.

Pros

• Powerful eight-core processor
• Generous 32GB memory
• Fast 6400MT/s memory
• Dual 2.5GbE networking
• Oculink graphics expansion

Cons

• Fixed soldered memory
• Only 512GB base storage

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Oculink gives the K16 a direct high-speed graphics expansion path. It also includes full-function USB4, two 2.5GbE Ethernet ports, WiFi 6E, and USB 3.2 Gen2 connectivity. The listed storage is a 512GB NVMe SSD with two M.2 positions, so local capacity can be increased. Triple-display support through HDMI, DisplayPort, and USB4 is useful for a compact multi-screen office or gaming station.

Its 32GB of soldered memory is a double-edged characteristic. It offers generous capacity now, but it cannot be expanded later, and the high-speed LPDDR5 configuration is fixed rather than user-replaceable. The 512GB starting drive can also become restrictive quickly for modern games and 4K media, although the additional M.2 slot mitigates that issue.

This K16 is a strong recommendation for users who want substantial memory and CPU performance in a small footprint. It works well for content production, development, streaming, and compact gaming with a compatible eGPU. Buyers should choose it when 32GB is enough for the long term, rather than expecting the memory to be upgraded later.

Memory Headroom for Busy Workflows

Thirty-two gigabytes gives applications more room than a typical 16GB compact PC, which can help with large project files, browser tabs, and background applications. The memory is fast, although its soldered construction makes capacity a fixed decision.

A Stronger Platform for eGPU Work

The Ryzen 7 7735HS offers more CPU headroom than the Ryzen 5-based M8 models. When combined with Oculink, it creates a compact platform better suited to demanding graphics work, provided the enclosure and power supply can support the intended card.

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6. AOOSTAR MACO – Exceptional Storage and Networking Value

4.5Editor scoreCheck price on Amazon

AOOSTAR MACO

Ryzen 7 6850H

24GB LPDDR5 memory

1TB PCIe 4.0 SSD

Quad 4K output

The AOOSTAR MACO stands out with a Ryzen 7 6850H, 24GB of LPDDR5 memory, 1TB of PCIe 4.0 storage, three M.2 positions, dual USB4, and dual 2.5GbE networking. The eight-core, 16-thread processor can boost to 4.7GHz, while Radeon 680M graphics support ordinary gaming, image editing, programming, media consumption, and office software.

Pros

• Excellent 24GB memory capacity
• Three high-speed storage slots
• Independent 64Gbps Oculink
• Dual USB4 ports
• Dual 2.5GbE networking

Cons

• Soldered memory cannot expand
• Oculink lacks hot-swapping

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Its Oculink implementation is described as an independent 64Gbps channel that does not occupy an M.2 slot. This separation matters for external GPU use because it preserves internal storage flexibility and avoids routing graphics traffic through a shared USB display pathway. The three PCIe 4.0 M.2 slots can also support RAID 0, 1, and 5 arrangements, adding a useful storage-focused dimension to the system.

Display and peripheral options are extensive. The MACO supports four 4K screens at up to 120Hz through DisplayPort, HDMI 2.1, and two USB4 connections. Its fingerprint reader supports Windows Hello, the chassis uses recycled aluminum, and a vapor chamber with dual turbo fans manages heat. These features create an unusually complete compact package, although all 24GB of memory is soldered.

The MACO is our Best Budget pick because it balances eight-core processing, a large memory allocation, generous storage expansion, and a well-described Oculink implementation. It is suitable for creators, developers, network users, and gamers planning an external GPU. Oculink does not support hot-swapping, so the system should be shut down before connecting or disconnecting an eGPU.

Storage Expansion Without Oculink Interference

Keeping Oculink on an independent channel means compatible graphics expansion does not consume one of the three M.2 positions. Users can therefore build a system with substantial internal storage and an external GPU at the same time.

Security and Multi-Display Refinement

Fingerprint-based Windows Hello access adds convenient local security, while four-display support can make the MACO useful for timeline editing, research, monitoring, and other multi-window workflows. Compatible cables and adapters remain necessary for the highest display modes.

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7. Reatan X8 – Premium AI and Workstation Power

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Reatan X8

Ryzen AI 9 HX 470

48GB Crucial DDR5

1TB Crucial NVMe SSD

Quad 8K output

The Reatan X8 is the premium selection in this guide, combining an AMD Ryzen AI 9 HX 470 with 48GB of Crucial DDR5 memory and a 1TB Crucial PCIe 4.0 NVMe SSD. Its 12-core, 24-thread processor reaches up to 5.2GHz, Radeon 890M handles integrated graphics, and an integrated NPU provides up to 86 TOPS of AI performance.

Pros

• Exceptional 48GB memory
• Replaceable Crucial components
• Up to 86 TOPS AI
• PCIe 4.0 Oculink interface
• Quad display with 8K support

Cons

• Premium-oriented configuration
• External GPU hardware adds cost

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This configuration is especially appealing for local AI assistants, language models, data analysis, content creation, programming, virtual machines, and professional multitasking. Crucially, the memory and storage are removable and upgradeable. Two DDR5 SODIMM positions support up to 96GB of memory, while dual M.2 slots can accommodate up to 8TB, making the X8 more future-facing than systems with fully soldered components.

Oculink uses a PCIe 4.0 x4 interface with up to 64Gbps of theoretical bandwidth. Compatible external desktop graphics can therefore turn the X8 into a more powerful rendering, editing, or gaming workstation. The rest of the specification is also high-end: four displays through HDMI 2.1, DisplayPort 2.0, and dual USB4, including 8K at 60Hz, plus WiFi 7, Bluetooth 5.4, and 2.5GbE wired networking.

The principal drawback is the premium nature of the hardware, and a serious eGPU setup will require a suitable enclosure, graphics card, cabling, and power. Even without one, the X8 is a compelling compact AI development and productivity platform. It is best for professionals who can exploit its large memory, upgradeability, AI acceleration, and high-speed networking.

Local AI With Ample Working Memory

The NPU and 48GB memory combination gives compatible local AI applications more room to operate without immediately depending on remote services. That makes the X8 relevant to model development, assistants, analysis workflows, and privacy-conscious local processing.

An Upgradable Premium Foundation

Replaceable Crucial memory and storage are valuable in a high-end system because they can be serviced or expanded as workloads evolve. The stated 96GB memory ceiling and 8TB storage ceiling provide more long-term headroom than the fixed configurations elsewhere in the list.

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8. GMKtec K15 1TB – Efficient Performance With More Storage

4.2Editor scoreCheck price on Amazon

GMKtec K15 1TB

Core Ultra 5 125U

32GB DDR5 memory

1TB PCIe 4.0 SSD

Quad 4K or 8K

The 1TB GMKtec K15 shares the efficient Core Ultra 5 125U foundation of the first-listed K15 but adds more immediate storage. The processor combines 12 cores, including performance, efficiency, and low-power cores, with 16 threads and a boost clock of 4.3GHz. Its 13 TOPS Intel AI Boost NPU supports compatible local AI tasks, while Intel Arc 140T graphics handle modern games and creative applications.

Pros

• Efficient Core Ultra platform
• 13 TOPS AI accelerator
• Spacious 1TB storage
• Three M.2 expansion slots
• Four-display capability

Cons

• Modest integrated graphics
• Three-year coverage begins later

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Memory consists of two 16GB DDR5 SO-DIMM modules, giving the system 32GB of capacity and the ability to replace or expand the modules. Storage is more generous than the 512GB K15 configuration: a 1TB PCIe 4.0 SSD is included, and three M.2 2280 positions support further expansion. The claimed maximum combined capacity is 24TB, subject to drive compatibility.

Quad-screen output combines HDMI 2.1, DisplayPort 1.4, and USB Type-C with DisplayPort functionality. Oculink provides a dedicated PCIe x4 path for an external GPU, and a single 2.5GbE Ethernet port is joined by WiFi 6 and Bluetooth 5.2. A triple-fan cooling system includes CPU fans and a separate fan for the memory and storage area, with RGB lighting and a quiet mode specified at 35dB.

This K15 is a strong fit for users who want efficient multitasking, local AI capabilities, substantial memory, and more storage without moving to a Ryzen 7 configuration. It is well suited to compact development, media, and office systems with future graphics expansion. The stated three-year service arrangement beginning from October 2026 is an important detail to verify for the specific purchase date.

A More Complete Everyday K15

The larger drive makes this version more practical for games, media libraries, and project files from the outset. The 32GB memory and expandable M.2 layout also reduce the likelihood of an immediate storage-related upgrade.

AI Without a Dedicated Graphics Card

The 13 TOPS NPU and Arc 140T graphics can support compatible AI and media workflows before Oculink is used. This makes the K15 useful as a complete small PC rather than solely a host waiting for external graphics hardware.

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9. GMKtec K16 – Accessible Ryzen eGaming Platform

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GMKtec K16

Ryzen 7 7735HS

32GB LPDDR5 memory

512GB PCIe 4.0 SSD

Triple 8K output

The GMKtec K16 is designed as an accessible route into compact gaming and creative computing. Its Ryzen 7 7735HS provides eight cores, 16 threads, and boost speeds up to 4.75GHz, while Radeon 680M integrated graphics are described as approaching the performance of a GTX 1050 Ti. That makes the base system suitable for 1080p gaming at appropriate settings as well as mainstream work.

Pros

• Eight-core Ryzen performance
• 32GB included memory
• Front-mounted Oculink
• Dual 2.5GbE networking
• Triple high-resolution output

Cons

• Base storage is limited
• Oculink disallows hot-plugging

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A front-mounted Oculink port provides a direct PCIe 4.0 x4 connection for compatible RTX 40- or 50-series graphics cards used through an external dock. The feature is especially appealing because the GPU is not permanently built into the small chassis. Oculink does not support hot-plugging, however, so the K16 must be shut down when the graphics connection is changed.

The system includes 32GB of LPDDR5 memory, which is generous for gaming, streaming, office applications, and creative multitasking, though it is soldered. A 512GB PCIe 4.0 NVMe SSD serves as the boot drive, and two M.2 positions permit additional storage with compatible PCIe drives. HDMI, DisplayPort 1.4, and USB4 support three displays, with stated maximum output reaching 8K.

This K16 is a good choice for a buyer who wants a capable compact base and already understands the additional space, power, and cooling needs of an external GPU. It also works as a standalone system for mainstream gaming and productivity. Those planning extensive game libraries should consider a larger internal drive or add storage through the available M.2 slots.

A Practical Path to External Graphics

Front access to Oculink makes the connection convenient in a desk setup, and the dedicated PCIe 4.0 pathway can provide stronger graphics throughput than many shared USB-based external GPU arrangements. The enclosure still needs to accommodate the selected card and its thermal requirements.

Useful Networking and Display Options

Two 2.5GbE ports support NAS, soft-router, firewall, and virtualized network setups. Triple-display support makes the K16 practical for streaming dashboards, editing windows, and high-resolution office arrangements.

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10. GMKtec K8 Plus – Best Overall Mini PC with Oculink

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GMKtec K8 Plus

Ryzen 7 8845HS

16GB DDR5 memory

1TB PCIe 4.0 SSD

Quad 4K or 8K

The GMKtec K8 Plus is our Editor's Choice and the most balanced Oculink mini PC in this group. Ryzen 7 8845HS silicon provides eight cores, 16 threads, Zen 4 efficiency, and boosts up to 5.1GHz. Radeon 780M graphics with 12 RDNA 3 compute units are suitable for mainstream gaming and creative work, while the Ryzen AI NPU delivers up to 16 TOPS for compatible applications.

Pros

• Well-balanced Ryzen platform
• Dedicated front Oculink
• Four-display flexibility
• Two full-function USB4 ports
• Compact VESA-mountable design

Cons

• 16GB needs expansion for heavy work
• Oculink requires shutdown

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Its included 1TB PCIe 4.0 NVMe SSD provides useful immediate capacity, and the two DDR5 SO-DIMM slots can be expanded to 128GB with compatible modules. Two M.2 2280 PCIe 4.0 positions support additional NVMe storage, with up to 8TB per drive. The front Oculink port creates a direct PCIe 4.0 x4 route for a compatible external GPU, while front and rear USB4 ports provide 40Gbps data, video, and power-delivery options.

Display support extends to four 4K screens. HDMI and DisplayPort can reach 8K at 60Hz individually, while the USB4 connections support DisplayPort 1.4 output at 4K 60Hz. Two Intel I226-V 2.5GbE ports, WiFi 6E, Bluetooth 5.2, and 10Gbps USB-A connections round out a capable everyday platform. Silent, Balanced, and Performance modes allow power to be adjusted between 35W, 54W, and 65W, with brief peaks up to 70W.

The main weakness is the base 16GB memory allocation, though unlike soldered systems it can be replaced. Oculink is not hot-pluggable, requiring shutdown before connecting or disconnecting an eGPU. For a buyer seeking a compact, upgradeable, energy-conscious PC with a broad display and peripheral selection, the K8 Plus is the most complete option here and our strongest overall recommendation.

The Most Complete Feature Balance

The K8 Plus combines a modern eight-core processor, capable integrated graphics, local AI acceleration, 1TB storage, upgradeable memory, and four-display support. No single category dominates at the expense of the others, which makes it a versatile foundation for many kinds of user.

Flexible High-Speed Connectivity

Two full-function USB4 ports, Oculink, dual 2.5GbE Ethernet, and WiFi 6E cover external graphics, fast storage, docking, wired networks, and wireless peripherals. This broad interface selection reduces the need for additional adapters in everyday setups.

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Buying Guide – How to Choose the Best Mini PC with Oculink

Choosing an Oculink mini PC requires balancing processor performance, memory expandability, storage, display needs, cooling, networking, and the external graphics hardware required to complete the system.

Processor Performance

The processor determines how quickly the system handles general productivity, compilation, rendering, content creation, and game-related CPU work. The AMD options range from the six-core Ryzen 5 PRO 6650H to the 12-core Ryzen AI 9 HX 470, while the K15 uses a 16-thread Core Ultra 5 125U. A more capable CPU is useful when the external GPU handles graphics but software still needs strong multithreaded performance, although it may also require more cooling and power.

Memory Capacity and Upgradeability

Memory should be matched to both present and future workloads. The AOOSTAR MACO includes 24GB, several GMKtec models provide 32GB, and the Reatan X8 arrives with 48GB. The K8 Plus and K15 use replaceable SO-DIMM modules, while the M8 and K16 configurations use soldered LPDDR5. Replaceable memory offers a clearer long-term path, but 16GB may be limiting for large datasets, virtual machines, and intensive creative applications.

Oculink and eGPU Compatibility

Oculink provides a dedicated PCIe connection that is well suited to compatible external graphics cards. Check the stated lane generation, normally PCIe 4.0 x4 in this list, and confirm that your eGPU enclosure, adapter, and graphics card support the intended configuration. Oculink is not hot-pluggable, so power down the mini PC before changing the connection. The interface also does not include a GPU, enclosure, or desktop-style power supply.

Internal Storage Expansion

Storage needs vary according to whether the system will hold operating systems, applications, game libraries, project files, or media. Every model includes an NVMe SSD, but the capacities range from 512GB to 1TB. The AOOSTAR MACO stands out with three M.2 2280 positions and RAID support. The K15 also lists three M.2 positions, while most remaining systems provide two. Confirm NVMe support and any SATA restrictions before adding a drive.

Display and Desktop Layout

Display support determines how many monitors you can run without adapters and which refresh rates are available. Triple-display configurations cover common office and editing arrangements, while four-display systems are better for extensive dashboards, timelines, and multi-window workflows. Maximum resolution depends on the selected port, compatible monitor, cable, and output configuration. Users should not assume that every connected display will operate at the maximum resolution advertised for a single output.

Networking and Peripherals

A single 2.5GbE port may be sufficient for a typical desk, while dual ports add link aggregation, virtualization, firewall, NAS, or soft-router options. WiFi 6E is widely useful, and the Reatan X8 adds WiFi 7. USB4 provides high-speed storage, docking, charging, and display functions, but the number of full-function ports varies. Check USB-A and USB-C placement as well as audio, Bluetooth, and security features to avoid later adapter purchases.

Cooling, Noise, and Power Modes

Compact systems generate heat because their processors and memory are packed into a small enclosure. Dual-fan designs with 360-degree airflow are common among the higher-end choices, while the K15 uses three fans and the AOOSTAR MACO uses a vapor chamber with dual turbo fans. Adjustable performance modes let users reduce power and noise for routine tasks. An external GPU also adds heat and may require more power than the mini PC's own enclosure is designed to manage.

Warranty and Service Terms

Warranty information varies across the listings. Several GMKtec products describe a three-year arrangement beginning from a specific date in October 2026, with different replacement provisions, while one M8 listing states a one-year limited warranty. The AOOSTAR MACO includes a 12-month warranty and lifetime technical service, and Reatan offers a one-year hardware warranty with three years of technical support. These differences can matter for a compact workstation that may remain in service for years.

How to Use and Care for Your Mini PC with Oculink

Begin by checking the processor, memory, and storage configuration in the operating system, then install your operating system and required applications. Connect monitors through the ports that support your intended resolutions, and use Ethernet for demanding transfers or stable gaming latency. If the system will be mounted behind a display, confirm that the bracket and ventilation clearance fit the chosen arrangement.

Oculink requires a compatible external GPU enclosure and the appropriate cable. With the mini PC fully shut down, connect the enclosure, install the graphics card, and verify the power arrangement before starting the computer. Never connect or disconnect the Oculink cable while the system is running. Once inside the operating system, install the vendor and GPU drivers required for the selected card and confirm that the external GPU is detected as the primary display adapter.

For long service life, keep vents unobstructed, use the balanced or quiet mode during ordinary work, and let the system cool before moving it or attaching peripherals. Maintain free storage space, update firmware and drivers, and back up important data. For RAID, virtual machines, or network services, monitor temperatures and ensure the external graphics enclosure has adequate airflow and power delivery.

Frequently Asked Questions

Final Thoughts on Choosing the Best Mini PC with Oculink

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