NEW 250W 250 WATT REPLACEMENT FOR BESTEC TFX0250D5W POWER SUPPLY UNIT Fans: 1 Main Connector: ATX Connector 24 (20+4) Pin X 1 PC Input Voltage: 115/230 Volts AC Input Frequency Range: 60 / 50 Hz MTBF: 100,000 Hours on Maximum Load at +25°C Dimensions: ( W x H x D ) 3.4 x 2.5 x 7