Model No.: HDES51

This device uses optical fiber transmission technology and standard SFP optical  module to extend HDMI signal to 20km (single mode) with non-destructive, Using a  single fiber bidirectional LC interface to transmit optical fiber lines is low cost and more  stable signal transmission. Supports 4K@60Hz 4:4:4 HDR video transmission, it can  extended output and an independent audio separation output, Suitable for professional  settings including broadcast production, integrated conference systems, and HD  surveillance applications.