Kingston Technology 1 GB DIMM Memory 533 MHz (PC2 4200) 240-Pin DDR2 SDRAM Single (Not a kit) KTD-DM8400A/1G Includes one 1GB module of 533MHz DDR2 Desktop Memory for Dell Replaces Dell A0375066, A0375074, A0498618, A0498620, A0743606, A0913211 Memory designed, manufactured and tested to the specifications of each particular brand name computer system From the industry leader in PC memory 240-pin DIMM type