KOMPUTERBAY 8GB [2x4GB] FBDIMM Memory RAM DDR2-667 PC2-5300 Upgrade for the Dell PowerEdge 1950, 2900, 2950 Systems ECC Fully Buffered (an FBDIMM will not fit into a standard DDR2 socket, and a DDR2 module will not fit into an FBDIMM socket) Capacity: 8GB Speed: PC2-5300F 667MHz CL 5 Thermal Heatspreaders for Cooling 240-Pin FBDIMM Fully Buffered Lifetime Warranty