ATX 2.3v 550W Power Supply ** Manual AC input switch ** Low ripple and noise ** Output over voltage protection ** Short circuit protection on all outputs ** 135 mm Black Nano Bearing Fan ** UL, TUV, CB, CE, FCC, RoHs Approval ** Manufacture warranty: 1 year - 1 x ATX 20 + 4 pin - 1 x ATX 4+4 pin - 2 x PCI-Express 6 pin - 4 x SATA - 4 x Molex 4 pin - 1 x FDD