AddOn AM160D3DR4RLPN/8G x1 JEDEC Standard Factory Original 8GB DDR3-1600MHz Registered ECC Dual Rank x4 1.35V 240-pin CL11 RDIMM

These parts are FACTORY ORIGINAL Tier 1 modules (from either Samsung, Micron, Hynix, Infineon, etc.). You cannot buy a better module, and there is a good chance that it is an identical module you may get directly from the OEM. All AddOn modules are built to meet or exceed OEM specifications, and JEDEC standards. All memory modules come with a Lifetime warranty and are 100% guaranteed compatible for the appropriate systems it is intended for.