512MB DDR, 240-pin DIMM, 266MHz, Unbuffered, ECC
IBM 512MB PC2100, 0.5 GB, 1 x 0.5 GB, DDR, 266 MHz, 240-pin DIMM
IBM 512MB PC2100. Component for: PC/server, Internal memory: 0.5 GB, Memory layout (modules x size): 1 x 0.5 GB, Internal memory type: DDR, Memory clock speed: 266 MHz, Memory form factor: 240-pin DIMM, CAS latency: 2.5, ECC