IBM - 07K8051 - Power Supply 500W AC 07K8051 - IBM - 500-Watts AC Power Module for EXP300 $62.28 $52.78
IBM - 3531-1RX - Power Supply 500W 3531-1RX - IBM - 500-Watts Power Supply for EXP300 / EXP400 $47.97 $40.65