Axiom 32GB DDR2-667 ECC RDIMM Kit (4 x 8GB) for HP # AH405A, AB567A, AM324A - 32 GB (4 x 8 GB) - DDR2 SDRAM - 667 MHz DDR2-667/PC2-5300 - ECC - Registered - 240-pin - DIMM

667 MHz of memory speed with Registered signal makes your computer perform like an athlete RDIMM 32 GB of memory can produce approx. 10K MIPS and as a result, your system gets more room to run complex apps. 240-pin-pin DDR2 SDRAM operates at up to 400 MHz data bus speed with minimal power consumption and as a result, you get optimal computer performance with an improved memory heat dissipation