GMKtec NucBox G3
Measured idle power
6–8 W idle; 21–24 W load
Kill-A-Watt at the wall
Source: Low-Power Homelab N100/N150 power guide — bishalkshah.com.np · dated 2025
ECC memory support
No (DDR4 SODIMM, non-ECC)
Source: Low-Power Homelab N100/N150 power guide — bishalkshah.com.np · dated 2025
NIC chipset
NIC silicon not independently confirmed — verify with lspci -nn.
RAM ceiling
16 GB (1× DDR4 SODIMM)
Source: Low-Power Homelab N100/N150 power guide — bishalkshah.com.np · dated 2025
IOMMU / GPU passthrough
No community passthrough report sourced yet for this model.
Where to buy
Deterministic search links for “GMKtec NucBox G3” — not specific listings, and not paid placements. Prices, stock and the exact SKU/revision vary; confirm the unit you receive against the cited specs above.
Frequently asked questions
What is the GMKtec NucBox G3's idle power consumption?
GMKtec NucBox G3 (Intel N100) idles at 6–8 W idle; 21–24 W load. Method: Kill-A-Watt at the wall. This is a wall-measured figure — verified 2026-06-02.
Does the GMKtec NucBox G3 support ECC memory?
No (DDR4 SODIMM, non-ECC)
Is the GMKtec NucBox G3 good for Proxmox / a homelab?
Cheap N100 with good thermals per the reviewer; NIC chipset not independently confirmed. RAM ceiling: 16 GB (1× DDR4 SODIMM). NIC: not stated.
Sources
https://bishalkshah.com.np/blog/low-power-homelab-n100-mini-pc
Cited public information, not purchasing advice. Onboard NIC silicon and BIOS can differ between production batches of the same model name — confirm the revision you receive (
lspci -nn) before relying on a NIC or passthrough claim. Idle draw depends on OS, mains voltage (120 V vs 240 V) and power tuning (powertop).