HP 2GB DDR3-1333, 2 GB, 1 x 2 GB, DDR3, 1333 MHz, 240-pin DIMM HP 2GB DDR3-1333. Internal memory: 2 GB, Memory layout (modules x size): 1 x 2 GB, Internal memory type: DDR3, Memory clock speed: 1333 MHz, Memory form factor: 240-pin DIMM