Grass Valley Group 8551 1RU Audio Distribution Amplifier Boards included in this unit listed as follows (please refer to photos) p/n 066545-00W quanity-2 p/n 066546-00E
This item powers up and appears to be in good condition. It was recently deinstalled from a working studio. However, it is being sold as is with no warranty. No manual or peripherals are included.