2pcs 8GB PC3-10600 DDR3-1333 CL9 16c 256x8 240-pin SDRAM DIMM Genuine CMS brand, CMS is one of the most trusted names in the Computer Memory industry and this product carries a Lifetime Warranty from CMS Compatible with: HP/Compaq Business Pro 4300 SFF Mfgr's System P/N's: B0F50EA; B0F51EA; B0F52EA; B0F54EA; B0F56EA; B0F57ET; B0F61EA; B0F62EA; B0F63EA; B0F64EA; B0F65EA; B0F66EA; B0F68EA; B0F69EA; B5N00UT; B5N01UT; B5N02UT; B5N03UT; B5N04UT; B5N05UT; B5N08UT; B5N09UT; B5N10UT; B5N11UT; B5N13UT; B5N14UT; B5N15UT; B9C31AW; B9C32AW; B9C33AW; B9C34AW; B9C35AW; C3A19EA; C7E90AW MAX MEMORY 32GB SOCKETS 4 (Memory runs at 1333 MHz due to chipset. For systems configured with more than 3 GB of memory and a 32-bit operating system, all memory may not be available due to system resource requirements. Addressing memory above 4 GB requires a 64-bit operating system.)