Kingston 1GB 200-Pin DDR2 SO-DIMM Unbuffered DDR2 533 (PC2 4200) System Specific Memory for Dell Model KTD-INSP6000A/1G, compatible A0451753 (Dell); A0451756 (Dell); A0451758 (Dell); A0451760 (Dell); A0451762 (Dell); A0452683 (Dell); A0456163 (Dell); A0565739 (Dell); A0565818 (Dell); A0588655 (Dell), voltage 1.8v, tested for errors OK.