Features: There is a drain hole at the bottom, which makes the switch waterproof and damp-proof. Desktop computer switch, replacing the buttons on the old computer. Easy to install, there is adhensive at the bottom to ensure that it will not rotate. It is suitable for household, office, hotel, internet bar, etc. Specifications: Item Name: Computer for Case Power Switch Material: ABS Suitable Occasion: Household, Office, Hotel, Internet Bar, etc Features: Waterproof, Damp-proof, Easy Installation Size Details:3.5cm x3.5cm/1.37 x 1.37in (Approx.) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Note that USB port is only a power supply and can not transfer data. Application: 1. Internet bar: Using the desktop mobile switch, you can lock the computer chassis by pressing the power/restart button on the desktop mobile switch. 2. Home: You can use the left mobile for key to save without spending a lot of effort to repair the chassis. Package includes: 1 Piece Computer for Case Power Switch (Chassis Connection Cable Included) 1 Piece Metal Card Slot Bar