4K60 4-4-4 HDMI EXTENDER KIT OVER ULTRA-REACH MM/SM FIBER OP

The Kramer 675R/T is a high-performance HDMI fiber extender kit designed for ultra-reach transmission of 4K@60Hz video with 4:4:4 color sampling. The system divides signal conversion between two components: the 675T converts an incoming HDMI signal into an optical signal for transmission over fiber, while the 675R converts the received optical signal back into HDMI. With bandwidth up to 18Gbps, the kit supports demanding 4K60 HDMI signal distribution over a fiber-optic connection.

Ideal Use Cases

This model is intended for HDMI installations in which the source and destination must be connected across an ultra-reach fiber route. It is particularly relevant when a 4K@60Hz 4:4:4 HDMI signal must travel between separated equipment locations. Because the signal is converted to optical form for the transmission path, the 675R/T provides a purpose-built alternative to routing the HDMI signal directly for the entire distance. Its transmitter-and-receiver configuration also suits installations that require clearly separated source-side and destination-side hardware.

Why Choose This Model

The 675R/T combines 4K60 4:4:4 format support, 18Gbps bandwidth, and fiber-based signal transport in one matched extender kit. Two multi-mode SFP+ transceivers are included, providing the optical modules needed for a multi-mode configuration. The system is not limited to those included modules: it can be used with any Kramer-certified SFP+ transceiver, including a single-mode SFP+ transceiver. This flexibility allows the transceiver configuration to be selected according to the fiber mode required for the installation.

Installation and Integration

At the source location, HDMI connects to the 675T transmitter. The transmitter converts that HDMI input into an optical signal, which is carried over a fiber-optic cable. At the receiving location, the fiber connection terminates at the 675R, where the optical signal is converted back into HDMI for connection to the destination equipment.

The kit includes two multi-mode SFP+ transceivers for a multi-mode fiber configuration. Installations requiring another supported optical configuration can use Kramer-certified SFP+ alternatives, with a single-mode SFP+ transceiver specifically identified as an example. Transceiver selection should therefore be coordinated with the chosen fiber type. This modular SFP+ approach gives the installer a defined transmitter-to-fiber-to-receiver signal path without changing the HDMI source or destination format.

Performance Highlights

• Supports HDMI signals up to 4K@60Hz with 4:4:4 color sampling.
• Provides bandwidth up to 18Gbps.
• Converts HDMI to an optical signal at the 675T transmitter.
• Converts the optical signal back to HDMI at the 675R receiver.
• Uses fiber optic cable for the transmission link.
• Includes two multi-mode SFP+ transceivers.
• Supports Kramer-certified SFP+ transceivers, including single-mode options.

These specifications make the 675R/T suitable for transporting the stated 4K60 4:4:4 HDMI format while retaining a straightforward HDMI interface at both ends of the system.

What Makes It Different

The defining feature of the 675R/T is its combination of ultra-reach fiber transport and replaceable SFP+ transceiver support. Rather than tying the extender exclusively to one included optical configuration, Kramer supplies two multi-mode modules while permitting use with other Kramer-certified SFP+ transceivers. The product can therefore support either its included multi-mode configuration or a compatible configuration using a certified alternative such as a single-mode SFP+ transceiver. Its 18Gbps bandwidth and explicit support for 4K@60Hz 4:4:4 also distinguish the kit as a solution for high-bandwidth HDMI extension.

Final Assessment

The Kramer 675R/T provides a focused solution for ultra-reach transport of 4K60 4:4:4 HDMI over fiber. It combines a 675T HDMI-to-optical transmitter, a 675R optical-to-HDMI receiver, 18Gbps bandwidth, and two included multi-mode SFP+ transceivers. Compatibility with Kramer-certified SFP+ alternatives adds useful flexibility when the fiber configuration calls for another supported transceiver type, including single-mode.