Surface Book just mane khud used ki hai koi b issue nhi, Display Screen: 13.5” PixelSense Display Resolution: 3000 x 2000 (267 PPI) Touch: 10 point multi-touch Memory 16GB RAM Processor 6th Generation Intel Core i7 GPU Intel HD graphics 520 GPU NVIDIA GeForce dGPU with 1GB GDDR5 memory Battery 5 to 7 hours SSD 512 GB Cameras, video, and audio Windows Hello4 face sign-in camera

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