Product Detail Storage Capacity: 2 GB (2 x 1 GB) Type: DRAM; Technology: DDR2 SDRAM Form Factor: DIMM 240-pin Memory Speed: 800 MHz (PC2-6400) Non-ECC, Unbuffered, 128 x 64 module configuration . The "Dell SNPXG700CK2/2G 2GB 2 x 1GB DDR2 SDRAM Memory Module Kit" is best product for you. We recommended Dell SNPXG700CK2/2G 2GB 2 x 1GB DDR2 SDRAM Memory Module Kit