- Ultra-compact 72 x 72 x 44.5 mm palm-sized chassis weighing only 7.27 oz (206 g)
- Dual HDMI 2.0 outputs supporting simultaneous dual 4K displays at 60Hz
- Equipped with Wi-Fi 6, Bluetooth 5.2, and Gigabit Ethernet networking
- Low power envelope based on an efficient 10W Intel Celeron N5095 processor
- 8GB LPDDR4 memory is permanently soldered and cannot be upgraded
- Storage expansion is restricted to the shorter M.2 2242 form factor over PCIe 3.0 x2 or SATA
- USB-C power port requires a fixed 12V input rather than universal USB-PD compliance
Overview
Occupying a sub-quarter-liter desktop footprint measuring 2.83 x 2.83 x 1.75 in (72 x 72 x 44.5 mm) and weighing just 7.27 oz (206 g), the GMKtec G5S re-engineers entry-level x86 computing around extreme physical space constraints. Built within an injection-molded polymer chassis, the palm-sized enclosure integrates VESA mounting compatibility for discrete rear-panel monitor attachment or space-constrained kiosk installations. Under the hood, processing is driven by an Intel Celeron N5095 quad-core Jasper Lake processor operating with a 10W TDP, paired with 8GB of soldered LPDDR4 memory. While direct competitors like the Beelink Mini S12 offer user-accessible SO-DIMM expansion in a larger enclosure, the G5S intentionally prioritizes footprint reduction, accepting a fixed 8GB ceiling and an M.2 2242 storage boundary in exchange for pocketable portability.
I/O architecture is surprisingly versatile for the miniature scale, provisioning dual HDMI 2.0 interfaces that drive simultaneous 4K resolutions at 60Hz alongside three 5 Gbps USB-A 3.2 Gen1 ports, Gigabit Ethernet, and Wi-Fi 6 wireless connectivity. Power delivery is routed through a dedicated USB-C port, though buyers must note this rail requires a fixed 12V/3A DC supply rather than adhering to full dynamic USB Power Delivery protocol negotiation. Thermal dissipation relies on a compact internal copper heatsink and blower fan assembly exhausting out the perimeter vents; while this active setup easily manages the 10W Jasper Lake die during lightweight office workflows, the small-diameter fan spins up with an audible high-frequency whine under sustained multi-thread computational loads.
Technical Specifications
| Brand | GMKtec |
| Model | Nucbox G5S |
| Form Factor | Ultra-Compact Mini PC |
| Dimensions | 2.83 x 2.83 x 1.75 in (72 x 72 x 44.5 mm) |
| Weight | 7.27 oz (206 g) |
| Processor | Intel Celeron N5095 (4 Cores / 4 Threads, 2.0 GHz Base, up to 2.9 GHz Burst) |
| Processor TDP | 10W |
| Graphics | Intel UHD Graphics (16 EUs, up to 750 MHz) |
| Memory | 8GB LPDDR4 2400 MT/s (Soldered Onboard) |
| Storage | 128GB M.2 2242 SATA SSD |
| Storage Expansion | 1x M.2 2242 slot (PCIe 3.0 x2 / SATA support up to 8TB) |
| Video Output | 2x HDMI 2.0 (Dual 4K @ 60Hz) |
| Networking | Gigabit Ethernet RJ45 (Realtek RTL8111H) |
| Wireless Connectivity | Wi-Fi 6 (802.11ax), Bluetooth 5.2 |
| USB Ports | 3x USB-A 3.2 Gen1 (5 Gbps) |
| Power Input | USB-C (12V / 3A DC input, 36W) |
| Audio | 1x 3.5mm headphone/mic combo jack |
| Card Reader | 1x MicroSD slot |
Primary Sources & Audited Citations
Recommended Alternatives in Mini PCs
At a Glance
How reliable is the GMKtec G5S Review: Palm-Sized Dual-4K Micro Node according to Mizex audits?
Ideal for digital signage, media streaming, and lightweight background micro-server deployments where desk space is nonexistent, provided 8GB of soldered non-expandable memory satisfies your workload.
What are the known quirks or drawbacks of the GMKtec G5S Review: Palm-Sized Dual-4K Micro Node?
Our reliability audit identified the following documented caveats:
- 8GB LPDDR4 memory is permanently soldered and cannot be upgraded
- Storage expansion is restricted to the shorter M.2 2242 form factor over PCIe 3.0 x2 or SATA
- USB-C power port requires a fixed 12V input rather than universal USB-PD compliance
What are the key engineering highlights of the GMKtec G5S Review: Palm-Sized Dual-4K Micro Node?
The top strengths recorded in our evaluation include:
- Ultra-compact 72 x 72 x 44.5 mm palm-sized chassis weighing only 7.27 oz (206 g)
- Dual HDMI 2.0 outputs supporting simultaneous dual 4K displays at 60Hz
- Equipped with Wi-Fi 6, Bluetooth 5.2, and Gigabit Ethernet networking
- Low power envelope based on an efficient 10W Intel Celeron N5095 processor