DDR2 - 2 GB - SO-DIMM 200-pin - 667 MHz / PC2-5300 - CL5 - 1.8 V - unbuffered - non-ECC - for Dell Latitude D620 D620 BURNER D620 Essential Plus Add On 2 GB DDR2-667 MHz SODIMM for Dell A0643480 - DDR2 - 2 GB - SO-DIMM 200-pin.