(Not for PC!) 8GB 4x2GB 667MHz DDR2 ECC Fully Buffered FB-DIMM Memory for MA356LL/A Mac Pro (MAJOR BRANDS) Could be Samsung, Kingston, Hynix, Smart, Corsair, Elpida, Micron, or Nanya NOT FOR PERSONAL COMPUTER/MAC'S...FOR SERVERS ONLY!!! Warranty: LIFETIME WARRANTY Will Ship WorldWide from United States 4 of the 2gb ddr2 5300 Fully Buffered