I bought this to plug in three devices; mouse, keyboard and headphones. The mouse and keyboard worked fine. The headset however would cycle between connected and disconnected messages. Plugging the headset directly into the laptop worked fine, meaning no more messages after a weeks use. Of note, this was a basic headset with no led lighting or the such, so little draw as opposed to an iPod or the like. Based on the headset issue, I do not recommend buying this product.