The LC Power 500 W Office Series PC power supply is just what you need for yourcomputer. As quiet as a mouse inoperation, this power unit features PFC (Power Factor Correction) technology toreduce your electricity bill by automatically optimising energy consumption. The 120 mm fan fitted intothe LC Power 500 W Office Series effectively dissipates heat.And in terms of connectivity, the LC Power 500 W Office Series offers four SATA ports for hooking up externaldevices such as hard disks, writers and optical disc drives.Technical Specifications:Power : 500 WOutlet Connector(s) : 1 x 20+4 pin main power 1 x 4+4 pin main power (12 V) 4 x SATA 2 x PATA 1 x FDD