16GB ( 4 X 4 GB ) APPLE MAC PRO 8-CORE / QUAD-CORE 2.8GHZ - 3GHZ- 3.2GHZ INTEL XEON (EARLY 2008) & MAC PRO WORKSTATION 2008 MEMORY DDR2 800 FULLY BUFFERED DIMM RAM PC2-6400 Lifetime Warranty Built with 1" Apple Required heat sheilds for lower operating temps Free Anti Static Wrist Strap included for Safe installation Lifetime Warranty