AddOn AM1333D3DRLPR/16G x1 IBM 49Y1563 Compatible Factory Original 16GB DDR3-1333MHz Registered ECC Dual Rank 1.35V 240-pin CL9 RDIMM - 100% compatible and guaranteed to work
AddOn AM1333D3DRVLPR/8G x1 JEDEC Standard Factory Original 8GB DDR3-1333MHz Registered ECC Dual Rank 1.5V 240-pin CL9 Very Low Profile RDIMM - 100% compatible and guaranteed to work
AddOn AM1333D3SRLPR/2G x1 JEDEC Standard Factory Original 2GB DDR3-1333MHz Registered ECC Single Rank 1.35V 240-pin CL9 RDIMM - 100% compatible and guaranteed to work
AddOn AM1333D3SRLPR/4G x1 Lenovo 0A89411 Compatible Factory Original 4GB DDR3-1600MHz Registered ECC Single Rank 1.5V 240-pin CL11 RDIMM - 100% compatible and guaranteed to work
AddOn AM1600D3SR4VRN/4G x1 JEDEC Standard Factory Original 4GB DDR3-1600MHz Registered ECC Single Rank x4 1.35V 240-pin CL11 Very Low Profile RDIMM - 100% compatible and guaranteed to work