Purchased in August of this year and set up in a rack, but it has hardly been used. The main unit is also almost unscratched, with only a few minor scratches on the top and bottom surfaces from when it was set up in the rack. It was very useful, but I am selling it because I have reorganized my equipment and no longer need it. This is a 16-channel XLR balanced patch bay with power pass-through. - Model: P16 - Number of channels: 16 channels - Connection type: XLR balanced connection - Output function: Power pass-through - Brand: ART Thank you for looking.