Logitech Wireless Touch Keyboard K400 Plus UK

USB (Universal Serial Bus) is a standard interface for connecting various peripheral devices to computers. It is known for its versatility, speed and ability to transfer both data and electricity.

This small device allows wireless peripherals such as keyboards and mice to communicate with the computer. It is usually plugged into the computer's USB port and acts as a bridge between the computer and the wireless device.

Compact keyboards, often referred to as 60% keyboards, are designed to minimize physical size by not including some keys that are not strictly necessary for all users. These keyboards usually do not have a number pad, a function row (F1-F12), nor do you find navigation keys (Home, End, Page Up, Page Down) and sometimes directional arrow keys. This compactness makes them ideal for users who have limited space or travel frequently with computer equipment.

Membrane keyboards work on the principle of a flexible membrane that is located under the keys. When the user presses a key, the membrane touches the bottom perimeter, registering the keystroke. This type of keyboard is usually quiet in use, so it is suitable for office environments. Due to their design, membrane keyboards are also more resistant to dust and spills. The membrane underneath the keys provides a degree of protection against the ingress of foreign particles and liquids, which can help prevent damage.