Buffalo USB 2.0 Hub 7-Port (with AC Adapter) BSH7AE03 Series Self-powered / Bus-powered (with AC adapter) The power control switch allows you to easily switch between NORMAL mode (always-on mode) and SAVE mode (power-saving mode). In SAVE mode, when the computer is turned off, the power to connected peripherals is automatically turned off, reducing standby power consumption by 99.9%. A high-output 20W AC adapter is included, allowing it to support devices with high power consumption. USB cable length: 1m Power cable length: 1.5m Body size: 140 x 25 x 30mm Magnetic sheet on the back Operation confirmed Thank you for viewing. Thank you for your consideration.