PWS-0037 400W Power module ( 2U Redundant Module SP402-2S ) (in hand)
PWS-0037 SP402-2S 2U Hot-Swap Power Module for Supermicro CSE-822R-400RC
PWS0046 550W Power Supply (SP552-RP) w/Thermal Redundant Fans
Supermicro PWS-0046 550W power supply (SP550-RP) with Thermal Redundant Fan for 4U or Tower