497765-S21 - HP 4GB Kit (2 X 2GB) DDR2-800MHz PC2-6400 ECC Registered CL6 240-Pin DIMM 1.8V Dual Rank Memory
497765-S21 - HP 4GB Kit (2 X 2GB) DDR2-800MHz PC2-6400 ECC Registered CL6 240-Pin DIMM 1.8V Dual Rank Memory
497765-S21 - HP 4GB Kit (2 X 2GB) DDR2-800MHz PC2-6400 ECC Registered CL6 240-Pin DIMM 1.8V Dual Rank Memory