Atlona 4K HDR Transmitter and Receiver Set with IR, RS-232, and PoE - AT-HDR-EX-70C-KIT

Product Overview

The Atlona AT-HDR-EX-70C-KIT is a 4K/UHD HDBaseT extender kit that transmits HDMI, control, and power signals up to 230 feet (70 meters) over a single CAT cable while supporting HDR10, HLG, and Dolby Vision at full 60 Hz frame rates with 4:4:4 chroma sampling. This HDR-EX Series kit uses visually lossless compression technology to carry 4K HDR content — which exceeds 10 Gbps — over HDBaseT infrastructure without perceptible quality loss. Relevant search terms include 4K HDR HDMI HDBaseT extender kit with PoE and RS-232, Atlona HDR extender for conference rooms and home theaters, and 4K/60 4:4:4 HDBaseT transmitter receiver kit with control.

Product Description

The Atlona AT-HDR-EX-70C-KIT consists of the AT-HDR-EX-70C-TX transmitter and AT-HDR-EX-70C-RX receiver, packaged together as a complete HDBaseT extension solution. The kit supports 4K/UHD video at 60 Hz with full 4:4:4 chroma sampling, and adds comprehensive HDR support: HDR10 up to 60 Hz, Hybrid Log-Gamma (HLG) up to 60 Hz, and Dolby Vision up to 60 Hz on displays supporting Low Latency Dolby Vision (LLDV) mode. This level of HDR and 4K/60 4:4:4 fidelity requires data rates exceeding 10 Gbps — significantly above the native HDBaseT bandwidth — which the kit achieves through visually lossless video compression that introduces no latency and no perceptible image degradation. HDCP 2.2 compliance ensures the system works with the latest protected content from 4K Blu-ray players, streaming devices, and other sources. The receiver is powered by the transmitter via IEEE 802.3af Power over Ethernet, simplifying installation by eliminating the need for a separate power run at the display end. RS-232, IR, and CEC control signals all pass bidirectionally over the HDBaseT link, allowing full control of sources and displays without additional cable infrastructure. The transmitter features a front panel TEST button and LED indicators (Power, Link, and Test) for HDBaseT link status testing and quick on-site diagnostics. Both transmitter and receiver share a compact, low-profile quarter-rack enclosure measuring 1.02 inches high, enabling discreet installation behind displays and above projectors. Field-updatable firmware via the front panel Mini-USB port ensures long-term system serviceability.

Key Features

• 4K/UHD @ 60 Hz with 4:4:4 Chroma Sampling — Delivers full-bandwidth 4K content at 18 Gbps HDMI data rates via visually lossless compression over the HDBaseT link.
• Full HDR Support — Passes HDR10, HLG, and Dolby Vision (up to 60 Hz on LLDV-capable displays) for compatibility with all current HDR formats.
• HDCP 2.2 Compliant — Supports the latest High-bandwidth Digital Content Protection specification for protected 4K content sources.
• HDBaseT Extension up to 230 ft (70 m) — Extends HDMI, control, and power up to 230 ft at 1080p or 130 ft at 4K/UHD over CAT6/6a/7 cable.
• PoE — Transmitter Powers Receiver — IEEE 802.3af PoE over the HDBaseT cable eliminates the need for a separate power supply or outlet at the receiver.
• Bidirectional RS-232 and IR Control — Passes RS-232 (up to 115200 baud) and IR (30–60 kHz) control signals in both directions over the HDBaseT link for full control system flexibility.
• CEC Pass-Through — Forwards CEC commands over the link for display control from source devices without requiring RS-232 or IR wiring.
• HDBaseT Link Status Testing — Front panel TEST button and multi-color LED indicator provide on-site diagnostics for rapid installation verification and troubleshooting.
• No Compression Latency — The visually lossless compression used to carry 4K HDR over HDBaseT introduces no measurable latency, making the kit suitable for interactive applications.
• Low-Profile Quarter-Rack Enclosure — Both TX and RX units measure 1.02 inches high for installation in tight spaces behind displays or above projectors; bracket accessories available for rack mounting.
• Field-Updatable Firmware — Mini-USB port on the front panel enables in-field firmware updates to maintain long-term compatibility and performance.

Typical Applications

• Conference rooms and boardrooms requiring 4K HDR signal extension to a remote display or projector
• Corporate digital signage installations with 4K HDR content delivery
• Education facilities with 4K displays requiring clean, cable-efficient AV distribution
• Government and judicial facilities with high-fidelity video requirements
• Hospitality environments with 4K HDR in-room display systems
• System integration projects pairing the kit with Atlona HDR matrix switchers such as the AT-HDR-H2H-44MA or AT-HDR-H2H-88MA

Technical Specifications

Frequently Asked Questions

Q: What makes the AT-HDR-EX-70C-KIT different from the standard UHD-EX Series extenders?

The HDR-EX-70C-KIT supports 4K/60 Hz with full 4:4:4 chroma sampling and all major HDR formats (HDR10, HLG, Dolby Vision), whereas the UHD-EX Series is limited to 4K/60 Hz at 4:2:0 with HDR10 only at 4K/24 Hz. The HDR-EX series also adds auto EDID correction, HPD management, and HDBaseT cable test mode not available in the UHD-EX series.

Q: Does the 4K HDR signal actually pass over standard HDBaseT cable?

Yes, through visually lossless video compression. Because 4K/60 4:4:4 and HDR signals exceed HDBaseT's native bandwidth, the kit applies extremely light compression with no latency to fit the signal within the available bandwidth, with no perceptible impact on image quality.

Q: What cable is recommended to achieve maximum extension distance?

CAT6a or CAT7 shielded twisted pair is recommended for maximum performance. CAT6a/7 supports 4K extension up to 130 ft (40 m) and 1080p extension up to 230 ft (70 m). CAT5e supports up to 115 ft at 4K and 200 ft at 1080p.

Q: Does the receiver require its own power supply?

No. The transmitter delivers power to the receiver via IEEE 802.3af Power over Ethernet over the HDBaseT cable. Only the transmitter requires a connection to an AC power outlet.

Q: What HDR formats are supported and at what frame rates?

The kit supports HDR10 up to 4K @ 60 Hz, HLG up to 4K @ 60 Hz, and Dolby Vision up to 4K @ 60 Hz. Note that Dolby Vision at 60 Hz requires the display to support Low Latency Dolby Vision (LLDV) mode; non-LLDV displays are limited to Dolby Vision at 30 Hz.

Q: Can RS-232 and IR control signals travel in both directions over the link?

Yes. Both RS-232 (up to 115200 baud) and IR (30–60 kHz) control signals pass bidirectionally over the HDBaseT link, allowing a control system at either end of the run to send and receive commands.

Q: What does the HDBaseT link test function do?

Pressing the TEST button on the front panel initiates a link quality test that reports cable integrity and signal status via the multi-color LED indicator. This enables rapid on-site verification during installation and simplifies troubleshooting without requiring additional test equipment.

Q: Is the AT-HDR-EX-70C-KIT compatible with Atlona matrix switchers?

Yes. The AT-HDR-EX-70C-TX can receive output from any Atlona HDMI source or matrix switcher with an HDMI output. It is commonly used with the AT-HDR-H2H-44MA and AT-HDR-H2H-88MA 4K HDR matrix switchers to extend individual zones.