Review · Tech & gadgets
GMKtec NucBox K8 Plus review
A Ryzen 7 8845HS mini PC with an OCuLink port, two USB4 ports and dual 2.5G Ethernet, sold as a barebone or complete.
By the Comredix review desk · Updated November 14, 2026
- Quality (40%)
- 8.9
- Experience (25%)
- 7.6
- Value (35%)
- 9.0
GMKtec NucBox K8 Plus offers the most expansion for the money on this list. GMKtec's spec table lists an AMD Ryzen 7 8845HS with 8 cores, 16 threads, a 3.8GHz base and 5.1GHz boost, and a TDP of 35W to 54W with peaks up to 70W. Radeon 780M graphics run at up to 2700MHz. Two DDR5-5600 SO-DIMM slots support up to 128GB, and two PCIe 4.0 M.2 slots support up to 16TB. The port list is long: two 40Gbps USB4, HDMI 2.1, DisplayPort 2.1, two 2.5G Ethernet ports, two front USB 3.2 Gen2, two rear USB 2.0 and an OCuLink PCIe Gen4 x4 port for an external graphics dock. Wireless is Wi-Fi 6E and Bluetooth 5.2, power comes from a 120W adapter and the case measures 132 by 125 by 58 mm. The GMKtec US store listed the barebone at $409.99 against a regular $619.99 when we checked. We compared documented features and published prices only.
Who it is for
builders who already own RAM and an SSD, and external GPU users
Price
$409.99 barebone (no RAM, SSD or OS) at the GMKtec US store (regular price $619.99).
Sale price $409.99 Regular price $619.99
Quoted from the vendor pricing page on November 14, 2026.
Key features
- AMD Ryzen 7 8845HS with 8 cores, 16 threads and boost up to 5.1GHz
- AMD Radeon 780M graphics with 12 cores at up to 2700MHz
- Two DDR5-5600 SO-DIMM slots supporting up to 128GB
- OCuLink PCIe Gen4 x4 port plus two 40Gbps USB4 ports
- Dual 2.5G Ethernet, Wi-Fi 6E and Bluetooth 5.2
Strengths and weaknesses
- Strength: Only pick on this list with an OCuLink port for external graphics cards
- Strength: Up to 128GB of memory and up to 16TB across two PCIe 4.0 M.2 slots
- Strength: Four display outputs: HDMI 2.1, DisplayPort 2.1 and two USB4
- Weakness: The $409.99 price is a barebone with no memory, storage or operating system
- Weakness: 1-year warranty and a 7-day return window, the shortest terms here
- Weakness: GMKtec notes the OCuLink port does not support hot-plugging
Key facts
- Price checked: $409.99 barebone
- Processor: Ryzen 7 8845HS, 8C/16T, up to 5.1GHz
- Max memory: 128GB DDR5-5600
- Expansion: OCuLink PCIe Gen4 x4, 2 x USB4
- Warranty: 1 year, 7-day returns
Where it ranks
GMKtec NucBox K8 Plus is No. 3 in our Best Mini PCs verdict.
Alternatives we scored
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