Specs & Power Consumption: GMKtec NucBox M6

Partially verified data AMD Ryzen 5 6600H

GMKtec NucBox M6 (Ryzen 5 6600H): 8W idle and 62W under load (measured), 2x 2.5GbE, up to 64 GB RAM. VESA mount behind your monitor.

Technical specifications

Idle [source]8 W

Under load [source]62 W

Estimated 24/7 average18.8 W

Yearly cost (€0.25/kWh)41.17 €

Average based on 80% of the time at idle and 20% under load, running 24/7: 165 kWh/year. Adjust the inputs to match your usage:

Energy: 165 kWh/year · Cost: 41.17 €/year (3.43 €/month)

Footprint 129 × 127 mm, 48 mm tall (about 0.79 litres).
Supports VESA mounting (75/100 mm bracket): attach it behind your monitor or under the desk to free up space. Keep the front USB ports and power button reachable.
When VESA-mounted, keep the vents clear: leave at least 1-2 cm between the case and the monitor.

Under load it reaches about 62 W and the fan becomes audible. For an always-on server, lower the power limit (TDP) in the BIOS to cut heat and noise.
Clean dust from the vents every 6-12 months to keep temperatures and power draw low.

See the current price and available configurations for GMKtec NucBox M6.

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Idle power: 8 W — notebookcheck.net (measured review, checked on 2026-11-06)
Load power: 62 W — notebookcheck.net (measured review, checked on 2026-11-06)

Unverified values*: dimensions, VESA support, max RAM, network ports.

* Value not verified by a reliable source: collected with an AI assistant and not yet confirmed by an official spec sheet or a measurement.

Real-world power draw varies with OS, RAM, drives, peripherals and BIOS settings.