Specs & Power Consumption: Qotom Q190G4N

Estimated data Intel Celeron J1900

Qotom Q190G4N (Celeron J1900): estimated 11W idle and 35W under load, 4x 1GbE, up to 8 GB RAM. VESA mount behind your monitor.

Technical specifications

Brand	Qotom
Model	Q190G4N
CPU	Intel Celeron J1900
Max RAM	8 GB unverified*
Network ports	4x 1GbE unverified*
Dimensions	133 × 127 × 37 mm estimate
VESA mount	Yes estimate

Power consumption & electricity cost

Idle estimate11 W

Under load estimate35 W

Estimated 24/7 average15.8 W

Yearly cost (€0.25/kWh)34.60 €

Average based on 80% of the time at idle and 20% under load, running 24/7: 138 kWh/year. Adjust the inputs to match your usage:

Energy: 138 kWh/year · Cost: 34.60 €/year (2.88 €/month)

Mounting & usage guide

Mounting

Footprint 133 × 127 mm, 37 mm tall (about 0.62 litres).
Supports VESA mounting: fix it to a wall or under a shelf near your modem and switch, with the network ports facing down or sideways for easier cabling.
When VESA-mounted, keep the vents clear: leave at least 1-2 cm between the case and the monitor.

Cooling & heat

Fanless aluminium case: the chassis is the heatsink and can feel hot to the touch in continuous use, which is normal.
Avoid closed cabinets without airflow; when lying flat, leave a few cm above the fins.
Clean dust from the vents every 6-12 months to keep temperatures and power draw low.

Recommended use cases

OPNsense or pfSense firewall/router: 4x 1GbE to split WAN, LAN and VLANs.
Proxmox or Docker for a few light services (Pi-hole, Home Assistant, Jellyfin without heavy transcoding).

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Data sources

Unverified values*: 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.

Estimated from the CPU class and measurements of similar models: idle power, load power, dimensions, VESA support. Always check the manufacturer's spec sheet.

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