This 82-key keyboard with built-in touchpad and HUB port for easy operation, which allows you to transfer data more quickly and more convenient. Plus, with the durable and strong button on the touchpad, it allows you to operate your computer when there's no mouse. Moreover, it supports any desktop and laptop computers and other devices. Features: Wired USB touchpad keyboard - Mini design requires less space and is easy to carry. Great typing experience - With precise scissor foot mechanical button structure, can evenly distribute the force on the surface of the button to prevent finger slippage, making each button naturally smooth. Anti-slip mat for stable operation - Non-slip mat design, with wooden tabletop or sleek desktop lend to generate great resistance friction, to ensure that the keyboard is less likely to slide during operation. Comes with a USB HUB interface to transfer data more quickly. With USB cable solution, the signal transmission is stable and the cable length of 1.5 meters for flexible and easy operation. Built-in touchpad allows the user to easily operate the computer and other devices without the mouse, and is suitable for use in situations where there is insufficient space and no mouse. The USB interface is reliable and stable, and has strong compatibility. Plug & Play - Convenient and easy to use, and is applicable to any desktop and laptop computers. Specification: Type: Wired USB Touchpad Keyboard Model: MC-818 Interface: USB Connection method: Wired Number of keys: 82 Cable length: Approx.1.5m / 1.6yd Size: Approx. 31 * 11.5 * 2cm / 12.2 * 4.5 * 0.8in Weight: Approx. 365.2g Package list: 1 * Keyboard Note: Please allow slight error due to manual measurement. Thanks for your kind understanding.