Axiom 4GB DDR3-1066 UDIMM Kit (2 x 2GB) # AX31066N7Y/4GK - 4 GB (2 x 2 GB) - DDR3 SDRAM - 1066 MHz DDR3-1066/PC3-8500 - Non-ECC - Unbuffered - 240-pin - DIMM

Axiom 4GB DDR3-1066 UDIMM Kit (2 x 2GB) # AX31066N7Y/4GK - 4 GB (2 x 2 GB) - DDR3 SDRAM - 1066 MHz DDR3-1066/PC3-8500 - Non-ECC - Unbuffered - 240-pin - DIMM