Coax Solutions Ltd offers a full range of in house cable assembly solutions.
Belden 4505R - RG-59, 4K UHD precision video cable. Suitable for SDI, HD-SDI and 4K UHD applications to 12GHz. Black PVC Jacket for indoor & outdoor use.
Belden 4505R data sheet here: Belden 4505R data sheet.pdf
Belden Recommended transmission distance chart here: digital-video-distance-chart-24-4-2019.pdf