This HDMI fiber optic extender can convert HDMI high-definition signal into optical signal and transmit it up to 10 kilometers away, and then restore it to HDMI high-definition signal and access the display. It can be compatible with HDMI devices on the market, compatible with 1920*1200@60Hz, supports EDID & HDCP transparent transmission function, and can also support RS232 transparent transmission, with a maximum baud rate of 115200bps.