16GB (2x 8GB DIMM) PC2-5300 CL5 ECC DDR2 SDRAM LP RDIMM (533MHz)
IBM Memory Kit 16GB (2x8GB), 16 GB, DDR2, 533 MHz
IBM Memory Kit 16GB (2x8GB). Internal memory: 16 GB, Internal memory type: DDR2, Memory clock speed: 533 MHz, CAS latency: 5, ECC