NPS-250KBB - Dell 250-Watts 100-120V 200-240V Power Supply for OptiPlex GX270 GX280 NPS-250KBB - Dell 250-Watts 100-120V 200-240V Power Supply for OptiPlex GX270 GX280 $113.85
NPS-250KBF - Dell 250-Watts 100-120V 200-240V Power Supply for OptiPlex GX270 GX280 NPS-250KBF - Dell 250-Watts 100-120V 200-240V Power Supply for OptiPlex GX270 GX280 $246.81
P1444 - Dell 250-Watts 100-120V / 200-240V ATX Power Supply for OptiPlex GX240 GX260 GX270 P1444 - Dell 250-Watts 100-120V / 200-240V ATX Power Supply for OptiPlex GX240 GX260 GX270 $118.28
PS-5251-2DFS - Dell 250-Watts 100-120V / 200-240V ATX Power Supply for OptiPlex Gx270 PS-5251-2DFS - Dell 250-Watts 100-120V / 200-240V ATX Power Supply for OptiPlex Gx270 $214.96
8X949 - Dell 250-Watts 200-240V ATX 12V Power Supply for OptiPlex GX260/GX270/GX280 Dimension 4600 8X949 - Dell 250-Watts 200-240V ATX 12V Power Supply for OptiPlex GX260/GX270/GX280 Dimension 4600 $246.81
D5539 - Dell 280-Watts 100-127V / 200-240V Power Supply for Optiplex GX280 D5539 - Dell 280-Watts 100-127V / 200-240V Power Supply for Optiplex GX280 $85.43