Product Detail Storage Capacity - 1GB Technology - DDR2 SDRAM Form Factor - 240-pin DIMM . The "Kingston KVR533D2N4K2/1G 1024MB 2 x 512MB Non-ECC CL4 DIMM 240-Pin DDR II ValueRAM Memory" is best product for you. We recommended Kingston KVR533D2N4K2/1G 1024MB 2 x 512MB Non-ECC CL4 DIMM 240-Pin DDR II ValueRAM Memory