Kingston Technology ValueRAM 512MB 533MHz DDR2 ECC CL4 DIMM, 0.5 GB, DDR2, 240-pin DIMM Kingston Technology ValueRAM 512MB 533MHz DDR2 ECC CL4 DIMM. Internal memory: 0.5 GB, Internal memory type: DDR2, Memory form factor: 240-pin DIMM, CAS latency: 4, ECC