The ProX XC-SBCAT6-4XM Audio Snake Box is half of a pair of metal boxes that are used to send up to four audio/DMX signals over a single run of CAT-5 CAT-5E or CAT-6 cables. They are low-cost & compact.  Both an XC-SBCAT6-4XF and an XC-SBCAT6-4XM are required for the working pair.

Designed to the highest professional standards the XC-SBCAT6-4XM Snake Box has a wide flat frequency response

You can mix and match Mic/Line Line or AES/EBU configurations making the Snake Box a very versatile high-quality means of transporting analog or digital signals. This Snake Box has been factory tested over CAT-5 UTP & CAT-6 STP cables.