All Kingston memory modules must perform properly to ensure maximum performanceKingston 256mb Ddr Sdram Memory Module - 256mb (1 X 256mb) - 266mhz Ddr266/pc2100 - Non-ecc - Ddr Sdram - 184-pin Kvr266x64c25/256 available on November 25 2016 from TechForLess for 8.97