Corsair 600 Watt 80+ Plus Bronze CX600 Power Supply PSU (CP-9020048-US). New!
http://www.ebay.com/itm/Corsair-600...658538?hash=item25c38e14ea:g:TpIAAOSwknJXyiYW
Frequency is 47 Hz - 63 Hz
http://www.ebay.com/itm/Corsair-600...658538?hash=item25c38e14ea:g:TpIAAOSwknJXyiYW
Frequency is 47 Hz - 63 Hz