676T 4K60 4:4:4 HDMI and RS–232 Transmitter over Ultra–Reach MM/SM Fiber Optic676T is a highperformance HDMI fiber transmitter for ultrareach extension of 4K@60Hz (4: 4: 4) HDMI signals. 676T converts the HDMI and RS232 input signal to an optical signal that is transmitted over a fiber optic cable to a compatible receiver that converts it back to HDMI and RS232 signals. 676T includes a multimode SFP+ transceiver, but can be used with any Kramer certified SFP+ transceiver, such as a singlemode SFP+ transceiver. High Performance