Addon Networks 4Gb Ddr3-1066 Memory Module 2 X 2 Gb 1600 Mhz

AA1333D3N9K2/4G - 4GB (2 x 2GB), 1066MHz, DDR3-1066/PC3-8500, DDR3 SDRAM, 240-pin DIMM

AddOn Networks 4GB DDR3-1066. Internal memory: 4 GB, Memory layout (modules x size): 2 x 2 GB, Internal memory type: DDR3, Memory clock speed: 1600 MHz, Memory form factor: 240-pin DIMM

ACP-EP Memory is your memory partner with upgrades available for all the latest notebooks, desktops, servers and workstations. All ACP-EP Memory products are manufactured to JEDEC standards, to meet or exceed all OEM specifications.