Top-Rated eBay ID: dqupgrade
Matched Pair 12 Core 3.33GHz XEON X5680 CPU Processor 2010 2012 Mac Pro 5,1
Matched Pair 12 Core 3.46GHz XEON X5690 CPU for 2010 2012 Mac Pro 5,1
Pair X5680 3.33GHz XEON CPU 2010 2012 Mac Pro 5,1 upgrade kit 5,1
Pair X5690 3.46GHz XEON CPU Mac Pro 5,1 2010 2012 upgrade kit