Webang Desktop Pop Up Power Strip is built for furniture, provide people power source within reach.It cna be easily installed into desk/cabinet/closet/counter or anywhere you have an ideal on it.You can charge multiple appliances easily at the same time without having to go to the bottom of the desk to find power.Widely used in hotel/office/home,etc.Outlet Configuration- 3 x AC power receptacle- 2 x USB portsPower Output: 125V/15AUSB Ports: 5V/2.1APackage Included1 x Desktop Pop Up Power Strip Outlet1 x Pack of screws1 x Install InstructionInstallation Steps1.Make a 8.92"L * 4.29"W * 4.33"H hole on the surface desk.2.Put the socket into the hole.3.Secure the socket with a power grommet.4.Fix it with screws and connect the power, then you can use the socket.Note:Make sure there is enough space on the surface desk before you cut a hole .