Features: This product is made of high quality metal material, strong and durable. Code name is for Xeon series X5660, six-core twelve threads, up to 2.8GHz basic frequency, super performance. 95W power consumption, 12M cache, 6.4GT/s QPI bus. LGA 1366 interface for motherboards of the X58, X79 series, and servers. Support for Hyper-Threading Technology, for Intel VT Virtualization Technology, SSE4.2 instruction set. Specifications: Material: Metal Size: Approx. 4.5*4.2*0.5cm/1.77*1.65*0.20inch CPU series: For Xeon 5600 series Workmanship: 32nm Core code: For Westmere EP Core Quantity: Six-core processor Threads Quantity: twelve CPU basic frequency: 2.8GHz Dynamic acceleration frequency: 3.2GHz L3 Cache: 12MB Thermal Design Power(TDP): 95W Memory Capacity: DDR3-800/1066/1333 Slot Type: LGA 1366 Hyper-Threading: Support Virtualization Technology: For Intel VT Instruction set: SSE4.2 ECC Memory Support: Yes Package list: 1 x CPU Note: Product status: Seller refurbished, PULLED FROM WORKING ENVIRONMENT Not in the scope of warranty: excessive overclocking does not boot is not covered by the warranty, CPU appearance is severely worn, exposed copper, metal scratches! Please players and friends carefully overclocked, so as not to affect the warranty. 1、This product is made of high quality metal material, strong and durable. 2、Code name is for Xeon series X5660, six-core twelve threads, up to 2.8GHz basic frequency, super performance. 3、95W power consumption, 12M cache, 6.4GT/s QPI bus. 4、LGA 1366 interface for motherboards of the X58, X79 series, and servers. 5、Support for Hyper-Threading Technology, for Intel VT Virtualization Technology, SSE4.2 instruction set.