8GB DDR4-2666 ECC UDIMM
8GB Module - DDR4 - ECC - Unbuffered - 2666MT/s - PC4-21300 - 19ns CAS Latency - 1.2V - Micron R-Die DRAM Modules - Lifetime Depot Carry-In Mfg. Warranty
1GB PC2-4200 ECC Registered DDR2-533
1024MB PC2-4200 DDR2-533 Registered ECC (2-Rank) (Non-Returnable/Non-Exchangable)