Fiber Optic Transmitter, HDMI, 2x ST. Fiber Optic Cable Extender, HDMI, 2x ST. The DVI-7360-ST is a high-speed, HDCP compliant fiber optic extender capable of distributing high resolution HDMI or DVI signals over cable lengths up to 350 meters (1,150 ft.) while maintaining flawless image quality. An HDMI input signal from a source device such as a set-top box or Blu-Ray player is converted into light pulses by an optical transmitter module for transmission over two (2) strands of fiber optic cable.