LOT OF 4 POLYCOM REALPRESENCE GROUP 500 VIDEO CONFERENCING CODEC - Please see pics for condition and specifics. These units have all been tested to power on and control an Eagle Eye 3 Camera. These units will need to be factory reset before they are put in service. We did not attempt to do this as we have little experience with this equipment. There are 4 units in total, but only three sets of cables (AC power, hdmi, camera cable, ethernet.) Lot includes one remote.  Sold AS IS!