Convenient charging for mobile devices ideal for smaller home and office workspaces the space saving surgecube 1 way surge protector with usb offers surge protection for your laptop printer or hard drive as well as 2 shared 24amp usb ports to charge a mobile device keep your tablet or smartphone charged and enjoy peace of mind knowing your hard to replace electronic equipment is safe single ac outlet wall mounted surge protector 306 joules of surge protection 10k c