4K60 4 4 4 HDR HDMI Receiver with bidirectional PoE, RS-232 & IR over

Ideal Use Cases

The Kramer EXT3-H-POE-R is designed for AV systems that need to receive high-resolution HDMI and control signals across a long twisted-pair connection. It is suited to installations where a source and display cannot be connected with a conventional short HDMI cable, while maintaining video resolutions up to 4K@60Hz with 4:4:4 color sampling and HDR.

This receiver is also appropriate when an extended AV link must carry more than video. RS-232 and IR support enables compatible control signals to travel with the HDBaseT connection, while bidirectional PoE adds power-delivery capability to the system. Compatibility with standard HDBaseT-compliant extenders provides options when integrating the receiver into an existing HDBaseT installation.

Why Choose This Model

The EXT3-H-POE-R combines an HDBaseT 3.0 receiver, HDMI output, control connectivity, and bidirectional PoE in one model. It receives the HDBaseT 3.0 signal, converts it, and delivers the resulting signals through its HDMI and control ports. The listed 18Gbps bandwidth supports demanding 4K60 4:4:4 HDMI transmission, preserving the full color information specified for the incoming signal.

• Receives 4K60 4:4:4 HDR HDMI over long-reach HDBaseT.
• Carries RS-232 and IR signals over twisted pair.
• Supports bidirectional PoE.
• Works with standard HDBaseT-compliant extenders.
• Provides a stated maximum refresh rate of 60Hz.

Installation and Integration

The receiver serves as the destination-side component of an HDBaseT signal path. Connect the incoming HDBaseT 3.0 link over twisted pair, then route the converted video through the receiver's HDMI output and connect the required RS-232 or IR control ports. This arrangement consolidates extended video and control transport into the HDBaseT connection.

Using Kramer copper cables, the EXT3-H-POE-R is specified to extend video signals up to 40m (230ft) at resolutions up to 4K@60Hz with 4:4:4 color sampling. Cable selection and the capabilities of the connected extender should be matched to the required resolution and transmission distance. The receiver can also be integrated with standard HDBaseT-compliant extenders supporting up to 4K@60Hz 4:4:4 video.

Performance Highlights

At the center of this receiver is support for 4K60 4:4:4 HDR HDMI. The 4:4:4 sampling specification is particularly relevant for signal paths that need to retain complete color information at the stated resolution and refresh rate. Its 18Gbps listed bandwidth corresponds with the unit's stated support for high-bandwidth HDMI video.

Long-reach transport is handled through HDBaseT 3.0 over twisted pair. In addition to HDMI video, the same receiver supports RS-232 and IR signals, allowing compatible control functions to reach the display-side equipment. The unit then separates the received HDBaseT signal and presents it through the appropriate HDMI and control connections.

What Makes It Different

The defining feature set is the combination of 4K60 4:4:4 HDR reception, HDBaseT 3.0 transport, bidirectional PoE, RS-232, and IR support. Rather than functioning only as a video endpoint, the EXT3-H-POE-R receives both AV and control signals from the twisted-pair link. Its compatibility with standard HDBaseT-compliant extenders also allows it to operate beyond a single proprietary extender pairing, subject to the stated capabilities of the connected equipment.

Final Assessment

The Kramer EXT3-H-POE-R is a focused long-reach receiver for systems requiring 4K@60Hz 4:4:4 HDR HDMI and control transport over twisted pair. Its HDBaseT 3.0 architecture, 18Gbps bandwidth, bidirectional PoE, and support for RS-232 and IR provide a consolidated receiving endpoint for compatible AV installations. For projects centered on high-resolution HDMI extension with integrated control connectivity, this model supplies the specified receiving and conversion functions in a single device.