1GB PC2100 184-Pin Registered DIMM x72 ECC
IBM 09N4308, 1 GB, 1 x 1 GB, DDR, 266 MHz, 184-pin DIMM
IBM 09N4308. Internal memory: 1 GB, Memory layout (modules x size): 1 x 1 GB, Internal memory type: DDR, Memory clock speed: 266 MHz, Memory form factor: 184-pin DIMM, CAS latency: 2.5, ECC