Features: brand new and high quality Button design, you can quickly switch to another computer to print with a light press Compact design provides easy one-touch switching of a USB 2.0 device or hub between two computers. One-key switch, convenient and fast. LED indicator lights show which connected computer has control of the attached devices Two computers can share USB devices to improve office efficiency. USb cable power supply,no need for external power supply, more convenient to use. Specifications: Switch Type: Push Button Switch Size:approx 5.5x7x2cm/2.16x2.75x0.79in Color:Black Material:Plastic Output: 1 x USB2.0 Input: 2 x USB2.0 Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment. Package includes: 1 x USB 2.0 Switch 1 x User Manual