This is an RGEEK 250W (peak) PicoPSU DC-DC ATX power supply module, designed for small form factor (SFF) and Mini-ITX PC builds. It features a fanless, silent design and plugs directly into a standard 24-pin ATX motherboard connector. The unit includes high-quality solid capacitors and comes with a cable harness featuring 1x SATA power, 1x 4-pin CPU power, and a 12V DC barrel jack input (5.5mm x 2.5mm). Requires an external 12V DC power adapter (not included).