Amazon.com: Corsair RM650, RM Series, 80 Plus Gold Certified, 650 W Fully Modular ATX Power Supply - Black : Electronics
Amazon.com: Corsair RM Series, RM650, 650 Watt, 80+ Gold Certified, Fully Modular Power Supply, Modern Standby (CP-9020194-NA) : Everything Else
Refurbished: Corsair Certified CP-9020054-NA RM Series RM650 650W ATX12V v2.31 and EPS 2.92 80 PLUS GOLD Certified Full Modular Active PFC Power Supply - Newegg.com