Lenovo 03X3813, 16 GB, 1 x 16 GB, DDR3, 1333 MHz, RDIMM Lenovo 03X3813. Component for: PC/Server, Internal memory: 16 GB, Memory layout (modules x size): 1 x 16 GB, Internal memory type: DDR3, Memory clock speed: 1333 MHz, Memory form factor: RDIMM