4K the easy way. Deliver 4K content to TVs up to 1000m away with this plug-in module. You don’t have to be an optical engineer to deliver amazing 4K experiences. With the Real4K™ Optical Adapter, you’re instantly able to stream 4K content over a single fiber optic cable to TVs up to 1000m (typ) away. The dongle includes all hardware and firmware needed to support HDMI signals, as well as HDCP content protection.