MICRON 2GB SERVER DIMM DDR2 PC5300 (667) UNBUF ECC 1.8 v 2RX8 240P 256MX72 128mX8 CL5 8k MT18HTF25672AZ-667H1 Buying memory can be tricky. This module is typically is used in servers. If you are not sure if this is the correct part for your system, contact the seller. Provide the the make, model and/or service tag of your system or mother board, or the part number from your current RAM can be used to help verify compatible memory.