16GB DDR3-1600 PC3-12800 ECC Reg 1.5v Module
16GB Module - DDR3 - ECC - Registered - PC3-12800 - 1.5V
1GB PC2700 ECC Registered
1024MB PC2700 DDR333 Registered ECC (Non-Returnable/Non-Exchangable)
512MB PC2100 ECC Registered
512MB PC2100 DDR266 Registered ECC (Non-Returnable/Non-Exchangable)