In-depth review
GMKtec NucBox K8 Plus Review (2026)
In-depth review of the GMKtec K8 Plus: OCuLink expansion, dual 2.5G networking, and whether it is the best gaming mini PC here.
GMKtec NucBox K8 Plus, Ryzen 7 8845HS, 32GB, 1TB
The best-connected Ryzen box: dual 2.5G ports, an OCuLink port for an external GPU, and four-screen output.
Our verdict
The K8 Plus is the gaming and expansion pick, because it is the only box here with an OCuLink port for a future external GPU, plus dual wired networks for homelab builds. Its fan noise at full speed and the limits of integrated graphics are real, but no other mini PC here offers this combination of gaming ability today and a discrete GPU path tomorrow.
What we like
- The OCuLink port opens a path to an external graphics card later, which no other box here offers, extending the machine's gaming life.
- Dual 2.5G Ethernet ports suit homelab and firewall builds, letting one box serve two networks without extra adapters.
- Four-screen output through USB4, HDMI 2.1, and DisplayPort 2.1 covers demanding multi-monitor desks and sim setups.
What to watch out for
- The performance mode that unlocks full speed also raises fan noise, so silent-mode users give up some graphics headroom.
- Demanding modern games still need low settings, since even the strong 780M is integrated graphics, not a discrete card.
- The dual-fan design and larger case make it less discreet than the smaller budget boxes on a tidy desk.
Who it is for
Gamers, emulation fans, and homelab builders who want expansion options that other mini PCs cannot offer.
OCuLink is the headline
Most mini PCs are sealed fates: the graphics you buy are the graphics you keep. The K8 Plus breaks that pattern with OCuLink, a high-speed external connector for a graphics dock or fast storage, which means a buyer can start with integrated graphics and add a discrete card later. That path costs extra, since the dock and card are separate purchases, but it is the only route here from a small box to serious gaming performance without replacing the whole machine.
Gaming today, honestly judged
Without an external card, the Radeon 780M handles esports, indie games, emulation, and older titles well, and demanding modern games only at low settings. That is not a flaw unique to this box; it is the limit of integrated graphics in this size. Buyers should judge the K8 Plus on the games they actually play, not on flagship titles, and treat the OCuLink port as the answer for anything heavier.
A homelab machine in disguise
Dual 2.5G Ethernet ports, four-screen output, and a 32GB starting configuration make the K8 Plus a capable homelab host as well as a gaming box. One port can serve a local network while the other handles wide-area traffic, and virtual machines and containers run comfortably on eight cores. The dual-fan cooling that enables this performance is audible at full speed, so silent-mode users trade some graphics headroom for quiet.
What owners report
Commonly praised
- Owners love the external graphics option that keeps a future upgrade path open
- praise: Owners praise the twin wired ports that suit home servers and split-network setups
- praise: Owners value the wide display support that handles demanding multi-screen desks
Common complaints
- Owners note full-speed running brings audible fan noise that silent-mode users must trade away
- complaints: Owners say demanding new games still need modest settings despite the strong integrated graphics
- complaints: Owners find the larger case less discreet than smaller boxes on a tidy desk
Recurring themes from owner reviews on retailers and forums, summarised by our editors. Updated October 2026.
Key specifications
- Processor
- AMD Ryzen 7 8845HS, 8 cores, up to 5.1GHz
- Graphics
- AMD Radeon 780M integrated
- Memory
- 32GB DDR5-5600, upgradeable
- Storage
- 1TB PCIe 4.0 SSD, expandable
- Connectivity
- Dual 2.5G Ethernet, dual USB4, OCuLink, Wi-Fi 6, Bluetooth 5.2
Also consider
MINISFORUM Venus UM790 Pro, Ryzen 9 7940HS, 32GB, 1TB
The creator favourite: a Ryzen 9 with Radeon 780M graphics, dual USB4, and four-screen output in a quiet metal case.
- Processor: AMD Ryzen 9 7940HS, 8 cores, up to 5.2GHz
- Graphics: AMD Radeon 780M integrated
Beelink SER8, Ryzen 7 8745HS, 32GB, 1TB
The quiet achiever: Ryzen 7 power with Radeon 780M graphics and triple 4K displays, in a calm silver case.
- Processor: AMD Ryzen 7 8745HS, 8 cores, up to 4.9GHz
- Graphics: AMD Radeon 780M integrated
Research-based assessment. ThePickLedger has not hands-on tested this product; this evaluation synthesizes manufacturer specifications, retailer documentation, and published expert reviews.
Questions, answered
Do I need an external GPU to enjoy the K8 Plus?
No, for casual, indie, emulation, and older games, the integrated graphics are enough. An external GPU only becomes necessary for demanding modern titles at higher settings, which is exactly the upgrade the OCuLink port enables later.
What does the OCuLink port cost to use?
The port itself is included, but an external GPU dock and a graphics card are separate purchases, and they add cost and desk space. Buyers should treat OCuLink as a future option, not as included performance, and budget for the dock and card when the time comes.
Is the K8 Plus noisy?
At idle and light loads it is quiet, but the dual fans become audible under sustained gaming or heavy work in performance mode. Silent mode quiets the machine by capping performance, so buyers choose between full speed and quiet running.