CMS 4GB (2X2GB) DDR2 6400 800MHZ NON ECC DIMM Memory Ram Upgrade Compatible with Dell Optiplex 755 Dt / Mt / Sff - A90

Computer Memory Solutions guarantees compatibility with models provided in description. Memory Type: Non-ECC DIMM, 240-Pin Speed: DDR2-6400, 800 MHz 2 Piece Kit Product appearance may vary. Picture for reference only. limited lifetime warranty when bought directly from computer memory solutions