512MB PC2-5300 ECC Registered DDR2-667
512MB PC2-5300 DDR2-667 Registered ECC (1-Rank) (Non-Returnable/Non-Exchangable)
Hynix 8GB DDR3-1600 ECC REG 1.5v UDIMM module
CP3-12800R 11-11-11 - 2R x8 - 1.5v - 8GB Module - DDR3 - ECC - Registered - 1600MT/s - PC3-12800