Kingston Technology 1GB 266MHz DDR ECC Registered CL2.5 DIMM Low Profile, x4, 1 GB, DDR, 184-pin DIMM Kingston Technology 1GB 266MHz DDR ECC Registered CL2.5 DIMM Low Profile, x4. Internal memory: 1 GB, Internal memory type: DDR, Memory form factor: 184-pin DIMM, CAS latency: 2.5, ECC