The RTK-X57-PSU™ table extension kits provide a reliable “transparent” link between the table devices and Poly Studio . A specific microphone cable and power supply are included in the kit. The RTK-X57-PSU™ offers a cost and time saving alternative to traditional infrastructure cabling for the Poly Studio. The RTK-X57-PSU™ provides Power for the Studio, HDMI, Audio I/O, USB and Poly Expansion Microphone support at distances up to 100 meters on a single CAT5e/CAT6.