AddOn AM1066D3DR4RN/4G x1 JEDEC Standard Factory Original 4GB DDR3-1066MHz Registered ECC Dual Rank x4 1.5V 240-pin CL7 RDIMM - 100% compatible and guaranteed to work
AddOn AM1066D3QR8VRN/8G x1 JEDEC Standard Factory Original 8GB DDR3-1066MHz Registered ECC Quad Rank x8 1.35V 240-pin CL7 Very Low Profile RDIMM - 100% compatible and guaranteed to work
AddOn AM1066D3QRLPR/16G x1 IBM 49Y1400 Compatible Factory Original 16GB DDR3-1066MHz Registered ECC Quad Rank 1.35V 240-pin CL9 RDIMM - 100% compatible and guaranteed to work
AddOn AM1333D3DR8VEN/8G x1 JEDEC Standard Factory Original 8GB DDR3-1333MHz Unbuffered ECC Dual Rank x8 1.35V 240-pin CL9 Very Low Profile UDIMM - 100% compatible and guaranteed to work