2 X 2GB PC2-3200 ECC DDR2 SDRAM RDIMM KIT NS (NMS)
IBM 2 X 2GB PC2-3200, 4 GB, DDR2, 400 MHz, 240-pin DIMM
IBM 2 X 2GB PC2-3200. Internal memory: 4 GB, Internal memory type: DDR2, Memory speed: 400 MHz, Memory form factor: 240-pin DIMM, CAS latency: 3, ECC