16GB DDR3, 240-pin DIMM, 1066MHz
IBM 8205-4529, 16 GB, 2 x 8 GB, DDR3, 1066 MHz, 240-pin DIMM
IBM 8205-4529. Internal memory: 16 GB, Memory layout (modules x size): 2 x 8 GB, Internal memory type: DDR3, Memory clock speed: 1066 MHz, Memory form factor: 240-pin DIMM