Function: Extends HD 4K HD Multimedia Interface signals up to 20 km over a single mode fiber optic cable with KVM capability (USB port) for remote control via mouse and keyboard. Universal to Use: This HD Multimedia Interface fiber optic extender is compatible with both single mode and multimode fiber. Features SC optical connector and wavelength 1310/1550 nm. Resolution and Build: Supports video resolutions up to 4K 60Hz with backward compatibility. Made of durable aluminum alloy with bilateral heat dissipation. LED lights indicate status. Simple plug-and-play installation. Compatibility: Used to extend high definition sources such as Blu-ray players, game consoles, and PCs to distant monitors, TVs, and displays. Performance: Provides faster speeds, minimal signal attenuation, long transmission distances, and high reliability. Fiber optic cables offer low bit error rate and resistance to electromagnetic interference.