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used mini pcs

GMKtec

GMKtec NucBox K8 Plus (Ryzen 7 8845HS)

The K8 Plus is GMKtec's Ryzen 7 8845HS mini PC, a 132 x 125 x 58 mm box built around an 8-core Zen 4 'Hawk Point' chip with Radeon 780M graphics and a Ryzen AI NPU. It takes two DDR5-5600 SO-DIMMs and two PCIe 4.0 NVMe SSDs, and has two 2.5 GbE ports and two 40 Gbps USB4 ports. It also has an OCuLink PCIe 4.0 x4 port for an external GPU dock, which gives more bandwidth than USB4. That makes it one of the more flexible used AMD minis: a quiet desktop, a dual-NIC Proxmox host, or a 1080p gaming box that can later take an eGPU. GMKtec also sold an earlier plain 'K8' with the same CPU, so check whether a listing is the K8 or the K8 Plus.

Good for

Badges come from the spec rules on each use page, not from guesswork.

GMKtec NucBox K8 Plus mini PC in silver aluminium with black mesh side vents, three-quarter front view showing the green power button, audio jack, USB-C and two USB-A ports
Representative photo — AI-generated from real seller photos. Individual listings vary. How we make these →

Specs that matter used

CPU generation
AMD Ryzen 7040 / 8040 (Phoenix / Hawk Point)
CPU options
Ryzen 7 8845HS
Form factor
Consumer mini PC
Memory
DDR5-5600 SO-DIMM, 2 slots
Max RAM (official)
128 GB — gmktec.com lists 128 GB; the gmktec-store.com listing says 96 GB. Plan on 96 GB (2x 48 GB) unless you can confirm 2x 64 GB on your BIOS.
Storage
2x M.2 2280 PCIe 4.0 NVMe; SATA SSDs not compatible; no 2.5-inch bay
Ethernet
2 × 2.5 GbE (Dual 2.5 GbE (controller not named by GMKtec))
Wi-Fi
Wi-Fi 6E + Bluetooth 5.2
vPro / AMT
No
Cooling
Fan-cooled
Power adapter
19 V / 6.32 A (120 W) DC brick
Windows 11
CPU generation is on Microsoft's supported list
Spec sources

Check before you buy

General off-lease checks (BIOS passwords, Computrace, missing drive caddies) are in the used mini PC buying checklist.

Buying guide

Which one to buy

Oct 4, 2026

This snapshot caught only one NucBox K8 listing (eBay's own count mixes in the K8 Plus and other models), so this is not a market read: the $1,029 band is that one seller's ask. It's a Ryzen 7 8845HS with 32 GB, a 2 TB SSD and Windows 11, from a 100% seller. Before paying it, check whether it's a K8 or a K8 Plus (look for the OCuLink port if you want an eGPU), confirm the 120 W 19 V adapter is included, and compare against the current new price.

Listed now
1
For parts
0
Typical ask
$1,025–$1,050
Full range
$1,029–$1,029

Snapshot

Live on eBay right now

1 of 1 listed

Snapshot captured — listings may have ended

Delivered prices include shipping as eBay quoted it to a US address on Oct 4, 2026. Many sellers charge by distance, so your total may differ; eBay shows your exact total before you buy.

Prices and availability change daily. The full, current search on eBay shows every matching listing, including new ones since Oct 4, 2026.

See all current listings on eBay ↗eBay search

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