It is very useful
I gave this 5 out of 5 stars
I really do like this USB Hub. It has 4 USB ports and each of those has an on/off switch and a power indicator light. I really like that I can choose what switches to have on. I can plug all my devices in and instead of unplugging them I can just shut off The cord is long enough to reach my computers USB port. It is 22 inches long and plugs into a USB 2.0. The transfer rate is pretty fast. The hub is 4 inches long and 1.5 inches wide. It is small enough to carry in my laptop bag. To use it you just plug it in and thats it, there is nothing to install. If you do remove something from the hub make sure it is not in use, like a flash drive. If you remove or shut off the flash drive while it is being used it will probably corrupt the drive and whatever you were trying to use it for will be ruined. I this and I think it is very useful. My laptop only has 2 USB ports. 1 is being used for my wireless mouse, so I only have 1 left and I have a lot of potential devices I could use at the same time. This hub solves that issue. I received this item for free to try in exchange for my honest and unbiased review.