Both keyboards attach to the Surface tablet via a powerful magnetic hinge strong enough to hold the weight of the tablet if you grab it by the keyboard. There are six pins centered on the hinge that touch corresponding contacts on the tablet body through which the keyboard and computer talk to each other. The top row includes Search, Share, Devices and Settings keys – the same as the charms buttons that can be swiped in from the right side of the touchscreen when using the device without the keyboard. This is a very convenient feature. The touchpad areas of both keyboards can be tapped and swiped and those motions are interpreted by Windows 8 the same as input from the touchscreen.