I have a number of items in my audio/video home studio that run off usb power. On the video side I have two lights and a camera. I also run a raspberry Pi pc for graphics. I also have an Alesis Drum powered over USB (I use the 5pin midi port). Rather than have lots of usb power supplies I wanted one small box that could power everything and importantly I could switch on and off with one switched at the socket outlet, so equipment was only drawing power when I needed it, adding safety and not wasting energy. Maybe not the most exciting device in my studio but this has simplified my powering up and down process is efficient and works exactly as specified. 100% satisfied.