It also provides two USB 2.0 hub ports for highspeed USB 2.0 devices sharing. It allows you to control 2 USBenabled multimedia computers and two USB 2.0 devices using only a USB keyboard mouse monitor and a set of speakers and microphones. You can select the computer's USB device hub port control and audio/mic channel independently using either frontpanel buttons or keyboard hotkeys. This stylish Compact Desktop KVM Switch family gives more than something of an ordinary desktop KVM Switch: It has everything worthy and noble inside their colorful apparels goodies such as the True Transparent USB (Ttu) keyboard/mouse Emulation and Alltime DDC video emulation! With both technologies, you can simply sit back and forget about everything nasty about keyboard mouse and video glitches due to incompatibility. To be eligible for a return, your item must be unused and in the same condition that you received it. Depending on where you live, the time it may take for your exchanged product to reach you may vary. Several types of goods are exempt from being returned. There are certain situations where only partial refunds are granted: (if applicable) Book with obvious signs of use CD, Dvd, VHS tape, software, video game, cassette tape, or vinyl record that has been opened. Any item not in its original condition, is damaged or missing parts for reasons not due to our error.