Amazon.com: Vbestlife for Intel Xeon X5660 Six-Core Twelve Threads 2.8GHz 12M Cache LGA1366 CPU Official Version Suitable for X58, X79 Series Motherboards : Everything Else
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Matched pair Intel Xeon X5660 2.80GHz Six Core LGA1366 12MB CPU Processor SLBV6 | eBay