4GB (2x2GB), DDR 266MHz, ECC, Registered, CL2.5, 184-pin DIMM
HPE 4GB DDR-266, 4 GB, 2 x 2 GB, DDR, 266 MHz, 184-pin DIMM
HPE 4GB DDR-266. Component for: PC/Server, Internal memory: 4 GB, Memory layout (modules x size): 2 x 2 GB, Internal memory type: DDR, Memory clock speed: 266 MHz, Memory form factor: 184-pin DIMM, CAS latency: 2.5, ECC