The S-4600 is a portable 3GSDI to HDMI converter. It converts the 3GSDI with its embedded audio to HDMI output, and supports 3GSDI loop through output and SDI embedded audio via 3.5mm earphone output. The S-4600 is heavy duty housing design, protecting the BNC connectors well, and supplied various screw threads in the bottom, for convenient installing, and future accessories (battery mount, etc).