Antec NEO ECO 400C 400W ATX12V 2.3 / EPS12V 80 PLUS Power Supply $19.99

Newegg.com has the Antec NEO ECO 400C 400W Continuous Power ATX12V 2.3 / EPS12V 80 PLUS Certified Active PFC Power Supply for $19.99 after $20 rebate with Free Shipping.