Product Description About this item Processor: 64-bit Product information Technical Details Brand ‎Intel Product Dimensions ‎13.79 x 12.09 x 4.6 cm; 60 g Item model number ‎BX80602X5550 Manufacturer ‎Intel Series ‎Xeon® Processor X5550 (8M Cache, 2.66 GHz, 6.40 GT/s QPI) Processor Brand ‎Intel Processor Type ‎Xeon Processor Speed ‎2.66 GHz Processor Socket ‎LGA 1366 Proc... https://www.electronics70off.co.uk/products/Intel-Xeon-X5550-2660-mhz-8MB-LGA1366-6th-4GT%7B47%7DO-CPU-Cooler-with-FC%252dLGA8-QPI-Sec-Boxed.html