myVolts ATX-250W 250W AT power supply

Compact AT power supply for legacy systems

This myVolts ATX-250W unit delivers 250W of continuous power through a 20+4 pin motherboard connector and a 4 pin CPU connector. It fits standard AT form-factor cases measuring approximately 140 x 150 x 86mm and includes a 1.1 metre mains lead with a US plug. A 12 cm fan runs under automatic thermal control to keep noise low in basic desktop builds.

Ideal for simple office or retrofit builds

The supply suits low-power systems that only need two SATA drives and a single 6 pin graphics connector. It has no active PFC and relies on a manual 115/230V switch, so it is not appropriate for modern high-efficiency requirements or multi-GPU configurations. Builders needing more than two SATA ports, additional PCIe power cables or 80 Plus certification should consider other options.

Straightforward drop-in replacement

Clear labelling on every connector makes wiring quick and reduces the chance of reversed pins. The 1.1 metre AC cord reaches most wall sockets without an extension. The only common issue is forgetting to set the voltage selector to match the local mains before powering on, which can damage the unit.