InfoComm 2016: Swit Explains S-4904 3GSDI and HDMI Wireless System June 10, 2016 | Home / June 10, 2016 rave-video / InfoComm 2016: Swit Explains S-4904 3GSDI and HDMI Wireless System InfoComm 2016: Swit Explains S-4904 3GSDI and HDMI Wireless System