1GB PC2-5300 ECC Unbuffered DDR2-667
1024MB PC2-5300 DDR2-667 Unbiffered ECC (2-Rank) (Non-Returnable/Non-Exchangable)
16GB DDR4-2666 ECC UnBuffered SO-Dimm module
16GB Module - DDR4 SO-DIMM - ECC - Unbuffered - PC4-21300 - 1.2V
2GB DDR333 ECC REGISTERED
2GB DDR333 ECC REGISTERED PC2700 184pin 128Mx72 ( for IBM HP, Intel, Lenovo Dell Supermicro)