Today only, Newegg offers the Rosewill 650-watt Full Modular ATX Power Supply for $89.99. This $20 mail-in rebate cuts it to $69.99. With free shipping, that's the lowest total price we could find by $20. This 80 PLUS platinum certified PSU features over 92% efficiency, crossfire and SLI support, and silent 135mm fan with auto-speed control.