SG5643235D8B0F0SGH - Smart - Modular 256MB PC3200 ECC Registered DDR-400MHz CL3 184-Pin DIMM 2.5V Memory SG5643235D8B0F0SGH - Smart - Modular 256MB PC3200 ECC Registered DDR-400MHz CL3 184-Pin DIMM 2.5V Memory $198.89 $161.70