We all have used keyboard, mouse with the USB port, however there are some really cool USB gadgets that we can use with the USB ports of our computer, or laptop. I am going to share some of these usb gadgets which I really feel awesome.
1. Cup Warmer pad
For someone like me, this is a boon. It happens with many of that we forget our tea or coffee while working on the computer. This gadget will keep our tea or coffee warm, or will heat it again. Just make sure to use a steel mug.