Specs & Power Consumption: Minisforum NAB9

Partially verified data Intel Core i9-12900HK

Minisforum NAB9 (i9-12900HK): 13W idle and 83W under load (measured), 2x 2.5GbE, up to 64 GB RAM. VESA mount behind your monitor.

Technical specifications

Brand	Minisforum
Model	NAB9
CPU	Intel Core i9-12900HK
Max RAM	64 GB estimate
Network ports	2x 2.5GbE estimate
Dimensions	127 × 127 × 51 mm estimate
VESA mount	Yes estimate

Power consumption & electricity cost

Idle [source]13 W

Under load [source]83 W

Estimated 24/7 average27.0 W

Yearly cost (€0.25/kWh)59.13 €

Average based on 80% of the time at idle and 20% under load, running 24/7: 237 kWh/year. Adjust the inputs to match your usage:

Energy: 237 kWh/year · Cost: 59.13 €/year (4.93 €/month)

Mounting & usage guide

Mounting

Footprint 127 × 127 mm, 51 mm tall (about 0.82 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.

Cooling & heat

Under load it reaches about 83 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.

Recommended use cases

Virtualised router (OPNsense VM on Proxmox) using the 2x 2.5GbE.
Proxmox VE with several VMs and LXC containers: up to 64 GB RAM.
Heavy office work, light photo/video editing and intensive multitasking.

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Data sources

Idle power: 13 W — notebookcheck.net (measured review, checked on 2026-11-06)
Load power: 83 W — notebookcheck.net (measured review, checked on 2026-11-06)

Estimated from the CPU class and measurements of similar models: dimensions, VESA support, max RAM, network ports. Always check the manufacturer's spec sheet.

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