OWC Mac Memory 16GB Kit (2x8GB) 800Mhz DDR2 Fully Buffered ECC DIMM Mac MemoryThe 16GB DDR2 800 MHz FB DIMM Memory Kit (2 x 8GB) from OWC is designed specifically for the Mac Pro (Early 2009) with 8 core and 4 core Xeon processors. The kit includes two 8GB memory modules, for a total of 16GB of DDR2 RAM. The dual rank, fully buffered modules feature a bandwidth of 6. 4GB s, ECC (error correction code), and a CAS latency of 5. This OWC memory upgrade kit fully meets Apple's specifications with special attention to proper thermal