Microsoft Surface Pro Signature. Keyboard layout: QWERTY, Keyboard language: English, Pointing device: Touchpad. Brand compatibility: Microsoft, Compatibility: Surface Pro 8 Surface Pro X, Product colour: Black. Connectivity technology: Docking, Device interface: Microsoft Cover port. Power source: Dock. Width: 289.1 mm, Depth: 226.1 mm, Height: 4.89 mm