T4507 - Dell (Motherboard) for OptiPlex GX280 SFF T4507 - Dell (Motherboard) for OptiPlex GX280 SFF $69.84
T2607 - Dell Heatsink and Fan Assembly for Optiplex GX280 T2607 - Dell Heatsink and Fan Assembly for Optiplex GX280 $72.16
T5098 - Dell Heatsink/Fan Assembly for Optiplex GX280 T5098 - Dell Heatsink/Fan Assembly for Optiplex GX280 $51.46