Black cat PC ATX 500W Power Supply SATA, 24PIN Connectors 2 x SATA Connectors, 1 molex connector, 1 x 4 pin CPU connector, 1 x 24 pin connector, 1 x floppy drive connector 115 VAC Operation, 230 VAC operation. Surge proof, complies with FCC part 15 class B & CISPR22 Over 72% efficiency typical ON full load, outpur over voltage. Over current protection. Low noise and ripple.