Specs & Power Consumption: ASUS NUC 15 Pro (Ultra 5 225H)
Partially verified data Intel Core Ultra 5 225H
ASUS NUC 15 Pro (Ultra 5 225H): estimated 9W idle and 49W under load, 1x 2.5GbE, up to 96 GB RAM. VESA mount behind your monitor.
Technical specifications
| Brand | ASUS |
|---|---|
| Model | NUC 15 Pro |
| CPU | Intel Core Ultra 5 225H |
| Max RAM | 96 GB estimate |
| Network ports | 1x 2.5GbE estimate |
| Dimensions | 117 × 112 × 37 mm [source] |
| VESA mount | Yes estimate |
Power consumption & electricity cost
Average based on 80% of the time at idle and 20% under load, running 24/7: 149 kWh/year. Adjust the inputs to match your usage:
Mounting & usage guide
Mounting
- Footprint 117 × 112 mm, 37 mm tall (about 0.48 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
- Active cooling: nearly silent at idle, the fan is audible under sustained load.
- Clean dust from the vents every 6-12 months to keep temperatures and power draw low.
Recommended use cases
- Always-on Home Assistant: at about 9 W idle it is cheap to run 24/7.
- Proxmox VE with several VMs and LXC containers: up to 96 GB RAM.
- Office work, browsing, 4K streaming and a home-office workstation.
Check price & availability
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Data sources
- Dimensions: 117 × 112 × 37 mm — asus.com (official source, checked on 2026-11-06)
Estimated from the CPU class and measurements of similar models: idle power, load power, 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.