Axiom 16GB DDR3-1333 Low Voltage ECC RDIMM for IBM # 49Y1563, 49Y1565 - 16 GB - DDR3 SDRAM - 1333 MHz DDR3-1333/PC3-10600 - ECC - Registered - 240-pin - DIMM

Up to 1333 MHz speed with Registered signal for smooth computer performance RDIMM 16 GB capacity is enough to execute all memory hungry programs simultaneously DDR3-1333/PC3-10660 interface synchronizes electrical and clock signals for an efficient data transfer rate