16GB, DDR2, 533MHz, 240-pin DIMM
IBM 15R8505, 16 GB, 4 x 4 GB, DDR2, 533 MHz, 240-pin DIMM
IBM 15R8505. Component for: PC/Server, Internal memory: 16 GB, Memory layout (modules x size): 4 x 4 GB, Internal memory type: DDR2, Memory clock speed: 533 MHz, Memory form factor: 240-pin DIMM