Features Proprietary IC and unique design Embedded thermal sensor Low-noise variable fan Various safety protection : OCP(over-current),OVP(over-voltage),SCP(short-circuit),UVP(under-voltage),OPP(over-power) 20+4 Main power connector Peripheral power connector x 2 Serial ATA connector x 1 Floppy power connector x 1 Upgrade for Antec Minuet PSU and many others Specifications PSU : TFX12V Ver.3.1 275W Dimension (D) x (W) x (H) : 5.75" x 3.25" x 2.5" Cooling : 12V Internal Fan MTBF : 50,000 Hours Approval : UL, FCC Input range : 90V-132Vac or 180V-253Vac Frequency: 47-63Hz Input Current: 275W 6A/4A 115/230 Vac Efficiency: 65% at full load, nominal line