4GB (1 x 4GB) / DDR3 1600 (PC3 12800) / 11 CAS Latency Server Memory / DDR3 (240 Pin DIMM) / Single Rank Kit HP ProLiant Servers: ...
8GB (2 x 4GB) / DDR2 667 (PC2 5300) Server Memory / DDR2 (240 Pin DIMM) / Dual rank Kit HP Compaq ProLiant Servers: BL20p G4, ...
12GB (3 x 4GB) / DDR3 1333 (PC3 10600) / 9 CAS Latency Server Memory / DDR3 (240 Pin DIMM) / Dual Rank Kit HP ProLiant G6 Server ...