4GB (2x 2GB) DDR3 DIMM, 1333MHz, 240-pin, CL9, 1.5V
PNY 4GB PC3-10660, 4 GB, 2 x 2 GB, DDR3, 1333 MHz, 240-pin DIMM
PNY 4GB PC3-10660. Component for: PC/Server, Internal memory: 4 GB, Memory layout (modules x size): 2 x 2 GB, Internal memory type: DDR3, Memory clock speed: 1333 MHz, Memory form factor: 240-pin DIMM, CAS latency: 9