http://images.craigslist.org/3k53p03lbZZZZZZZZZ9566ea15e8a32291129.jpg
$50
CORSAIR
Model CMPSU-550VX
Type ATX12V V2.2
Maximum Power 550W
Fans 1 x 120mm Double ball-bearing fan
PFC Active
Main Connector 20+4Pin
+12V Rails Single
PCI-E Connectors 1 x 6Pin, 1 x 6+2Pin
SLI Ready
CrossFire Ready
Modular No
Efficiency Up to 85%
Energy-Efficient 80 PLUS Certified
Over Voltage Protection Yes
Input Voltage 90 - 264 V
Input Frequency Range 50/60 Hz
Input Current 9/ 5A
Output +3.3V@30A,+5V@20A,+12V@41A,-12V@0.8A,+5VSB@3A
MTBF >100,000 Hours
Approvals UL, CUL, CE, CB, FCC Class B, TUV, CCC, C-tick
Features
Connectors 1 x Main connector (20+4Pin)
1 x 12V(4+4Pin)
6 x peripheral
6 x SATA
2 x Floppy
2 x PCI-E
Features Supports the latest ATX12V v2.2 and is backwards compatible with ATX12V 2.01 systems.
Ultra quiet 120mm double ball-bearing thermally controlled fan.
Double forward switching circuitry design offers high efficiency, up to 85% under wide load range.
Dedicated single +12V rail offers maximum compatibility with latest components.
High quality Japanese capacitors provide uncompromised performance and reliability.
Extra long cables support full tower size chassis.
Compatible with Core i7