Features: pulled from working machine , cpu will be final double tested before shipping.Warranty Terms: 1 Year WarrantySpecifications: Processor Brand: IntelProcessor Series: Intel CoreModel number: Q8400Processor Speed: 2.66GHzProcessor Socket: 775stepping: SLGT6The number of CPU cores: 4The number of threads: 4L2 cache size (MB): 4 MBWattage: 95 WattPackage Inclues: 1 x Q8400 ProcessorTips: Please check before purchasing if your PC and parts are compatible with this processor to avoid extra shipping cost and delays. Photos and serial number are only for reference , if there is fluctuation, according to the real object please.Thanks