H550E-S0 - Dell - 550-Watts Power Supply for PowerEdge R420D H550E-S0 - Dell - 550-Watts Power Supply for PowerEdge R420D $212.87 $180.40
D1200E-S0 - Dell - 1400-Watts Power Supply D1200E-S0 - Dell - 1400-Watts Power Supply $303.24 $256.98
E2700D-S0 - Dell - 2700-Watts Power Supply E2700D-S0 - Dell - 2700-Watts Power Supply $589.29 $499.40
D2400E-S0 - Dell - 2400-Watts Power Supply D2400E-S0 - Dell - 2400-Watts Power Supply $655.22 $555.27