16GB Module of 1066MHz DDR3 Quad Rank Reg ECC Memory for HP Server | 500207-071 (HP/Compaq); 500666-B21 (HP/Compaq); 500666-S21 (HP/Compaq); 593915-B21 (HP/Compaq); 593915-S21 (HP/Compaq); A0R55A (HP/Compaq) | Backed by a lifetime warranty and free technical support | From the industry leader in PC memory
One 16GB Module of 1333MHZ DDR3 Registered ECC Low Voltage Memory for HP/Compaq | 627808-B21 (HP/Compaq); 627812-B21 (HP/Compaq); 647901-B21 (HP/Compaq); A0R59A (HP/Compaq) | Backed by a lifetime warranty and free technical support | From the industry leader in PC memory | Designed and tested for compatibility in various HP/Compaq devices
Improved stablility for overclocking | Increased efficiency | Intel XMP 3.0-Ready and Certified | Plug N Play at 4800MHz | Low-profile heat spreader design
One 4GB Module of 1333MHZ DDR3 Memory | Specifically designed and tested for compatibility in various devices | 240-Pin Non-ECC Unbuffered DIMM | From the industry leader in PC Memory | Backed by a lifetime warranty and free technical support. Kindly visit manufacturing site for related videos for installation. - http://www.kingston.com/us/support/technical/products?model=valueram - http://www.kingston.com/us/memory/valueram
One 4GB Module of 1600MHz PC3 12800 DDR3 Memory | Specifically designed and tested for compatibility in various devices | 204 Pin Non ECC Unbuffered SODIMM | From the industry leader in PC Memory | Backed by a lifetime warranty and free technical support