Newegg offers the SeaSonic M12II 620-watt ATX Power Supply for $57.99. Redeem this $20 mail-in rebate to cut the price to $37.99. With free shipping, that's the lowest price we could find by $27. This 80 Plus Bronze-certified power supply includes four PCI-Express connectors, eight SATA connectors, and a 120mm fan. Deal ends February 12.