ITEM NAME:4 USB Port 5V 3.1A Wall Charger Outlet Power Supply Socket Plate Panel Face B4W7 4 USB Port 5V 3.1A Wall Charger Outlet Power Supply Socket Plate Panel Face B4W7 Flame retarded panel Pressure overcurrent protection: Yes USB Charging Application: suitable for all kinds USB 5V charge, such as a variety of cellphones , digital cameras and other electronic digital products. Applications: site dormitory, school dormitories, offices quarters, corporate offices, railway stations and so on. Easy to install, the same way as ordinaral sockets, can be mounted on a wall or desktop and other locations Panel material: PC Input parameters: AC110-250V USB output parameter: DC5.0V / 3100mA Dimensions: 8.6cm x 8.6cm x 3.5cm Package included : 1 x 4 port USB socket 2 x Screws Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.