Summary: Great hub. Can be used with or without the power supply. If you are using an external hard drive or other powered peripheral, use the power supply. It has plenty of juice to keep everything powered. Easy to use, no setup necessary.
Summary: I have had this for about a year, I lost two ports 3 months ago. I lost another yesterday. (Power but no PC control) The ports are set end to end and if you have a device that wider than the space given, that port is unusable. Made to be thin, but decreases functionality.