Samsung DP500A2DK01UB manual Using a wireless keyboard/mouse Optional, Windows 8 Charm Menu Key

Using a wireless keyboard/mouse (Optional)		Using the computer	50
		Chapter 3.
Windows 8 Charm Menu Key
		Runs the Search function in the Windows
(This function is only supported for Windows 8.)	Search
		8 menu.
	Share	Runs the Share function in the Windows 8
		menu.
	Device	Launches the Device function in the
		Windows 8 menu.
	Settings	Launches the Settings in the Windows 8
		menu.

The wireless keyboard automatically enters power-saving mode if there is no key input for a pre-determined period of time. Press any key to resume using the keyboard in power- saving mode.

However, a function to turn the keyboard off is not supported.