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ROCK 5 ITX - Power Supply Quick Reference
Original source-based reference for the Radxa ROCK 5 ITX Mini-ITX motherboard. This is a concise derivative, not
an official Radxa manual.
Choose one supply method
The board can be powered from a 12 V DC adapter, a PC-case supply, or a compatible PoE setup. Use only one of
these methods at a time; combining supplies risks damage. The board powers on automatically when supplied.
DC adapter sizing
Use a center-positive 12 V adapter with a 5.5 mm outer / 2.5 mm inner plug. The publisher lists about 15 W typical
board use and 25 W maximum with USB, SSD, and Wi-Fi peripherals, before counting SATA hard-drive power.
Attached drive Typical power allowance
SSD below 3 W
2.5-inch HDD 3-5 W
3.5-inch HDD 5-10 W
Example: four 3.5-inch HDDs at 10 W each plus a 25 W motherboard maximum make a 65 W load. Radxa
recommends at least a 12 V / 5.5 A adapter in that scenario.
Other supply routes
A PC-case power supply can feed the board through its ATX connector and may power drives separately. The
Radxa 25 W PoE+ module is suited to basic board operation, but is not recommended for powering high-demand
3.5-inch mechanical drives.
Source and redistribution
Based on Radxa Docs, 'Power Supply Selection', accessed 15 September 2026. Source:
https://docs.radxa.com/en/rock5/rock5itx/getting-started/power-supply
Radxa Docs identifies its content as CC BY 4.0. This original paraphrase and arrangement is also offered under CC BY 4.0, with
attribution to Radxa Computer (Shenzhen) Co., Ltd. and the source URL above. No proprietary schematic, confidential data, or personal
information is included.
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