Audio-Technica ATLK-EXT25 Link ExtenderThe Link Extender is used to extend cable runs on ATUC conferencing systems or to add additional power of up to 25 watts to devices used with SmartMixer. It has two RJ45 ports and can connect into either a ring or daisy chain of connected components allowing it to feed in both directions (forward and reverse). Features 2x RJ45 ports for connecting to other components with dedicated AT Link terminals Supplies connected devices with 48 V direct current