Mac Pro 4,1 5,1 x5680 CPU Upgrade Kit ND - Zephyr's Market
Intel Xeon X5680 CPU processor 3.33GHz LGA1366 12MB L3 Cache Six Core server CPU Free Shipping , - Price history & Review | AliExpress Seller - XL computer cpu Store | Alitools.io
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IBM / Lenovo 59Y5713 - 3.33Ghz 6.40GT/s 12MB Cache LGA1366 Intel Xeon X5680 Hexa-Core CPU Processor - CPU Medics