Features: It is USB device controller specially designed for hardware development and application. It adopts hardware architecture and can accurately simulate and control USB devices such as keyboard and mouse at hardware Powerful programmability. It is equipped with CPU, supports script running, and is completely separated from the PC, which can give advanced programmable functions to ordinary keyboards and mouse. It can not only be used to quickly develop hardware physical, but also help users to complete various complex tasks efficiently. Its hardware design has been strictly optimized to ensuring safe and efficient operational, and has excellent anti-detection ability, providing users with protective. It takes the easy-to-use language as the entrance to help users started programming quickly and deeply understand hardware and upper application framework. Specifications: Component:Plastic Size: Approx.55x48x20mm/2.17x0.79x1.89inch Package Includes: 1 Set Keyboard and Mouse Controller note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.