Sold as shown,  looks super clean and mint, not sure if was ever used, but listing as used to be save.

HD/SD-SDI Wireless Transmitter/Receiver

• Transmits 1080i60/50 4:2:2 Up to 328 ft

• Less than 1ms Delay

• Tx: 1x HD/SD-SDI Input, 1x Loop-Output

• Rx: Dual Simultaneous HD/SD-SDI Outputs

• V-Mount Plates on Both Sides

Additional 4-Pin XLR Male Power Input

• Internal 24dBm Antennas

• Operates on 5 GHz Band Using MIMO

• 4 Discreet Channels and 1 DFS

Features

• The CW-7 V-Mount Uncompressed Wireless HD/SD-SDI Transmission System is a transmitter and receiver set that allows you to send an HD/SD-SDI signal up to 328 ft with zero frame delay (less than 1 ms). It supports resolutions up to 1080i60/50 uncompressed in YCbCr 4:2:2 10-bit with two channels of embedded audio. Featuring four discreet channels, the system supports unicast operation, wherein multiple transmitters and receivers can utilize the available channels, and multicast operation where one transmitter can send to up to four receivers at the same time