4GB 2x2GB Memory Intel SE7501WV2 DDR-266 PC2100 ECC REG (ALL MAJOR BRANDS) Could be Samsung, Kingston, Hynix, Smart, Corsair, Elpida, Micron, or Nanya NOT FOR PERSONAL COMPUTER/MAC'S...FOR SERVERS ONLY!!! Capacity: 4gb (2x2gb) - You receive 2 Stick of the 2GB SDRAM DIMMS ECC REG for a total of 4gb Warranty: LIFETIME WARRANTY WorldWide Shipping to most countries & USA