The computer is professionally upgraded and customized. The manufacturer box will be opened by our professional engineers for customizing and testing. Factory defects and blemishes are significantly reduced by our in-depth inspection and testing. We offer a 12-month warranty, please feel free to contact us if you need any support from our team. Processor Model Core 7 155U # of Cores 12 # of Performance-cores 2 # of Efficient-cores 8 Total Threads 14 Max Turbo Frequency Up to 4.8 GHz Efficient-core Max Turbo Frequency 3.8 GHz Graphics Intel Graphics Display 16 inch 2K (1920 x 1200) Display Interface 2 x USB-C 2 x USB-A 1 x HDMI 1 x Micor SD Card Reader 1 x Headphone/Microphone combo Connectivity Wi-Fi 6E and Bluetooth Operating System Windows 11 Pro Others Dimensions:14.24 x 9.84 x 0.75 in Weight (approximate): 4.63 lbs