Atlona 4-Output 4K HDR HDMI to HDBaseT Distribution Amplifier - AT-HDR-CAT-4

Product Overview

The Atlona AT-HDR-CAT-4 is a commercial-grade 4K HDR HDMI to HDBaseT distribution amplifier that distributes a single HDMI 2.0 source to four displays over Category 6/6A cable, supporting full 4:4:4 chroma sampling at 60 Hz with HDR10, HLG, and Dolby Vision formats. Designed for professional AV installations in corporate, education, and commercial environments, this 4K HDBaseT distribution amplifier delivers signal distances up to 130 feet (40 meters) for 4K HDR or 230 feet (70 meters) for 1080p over Cat 6A/7, with HDCP 2.2 compliance for protected content distribution. Features including audio de-embedding, EDID management, CEC display control, bidirectional RS-232 and IR control extension, and Power over HDBaseT to receivers make the AT-HDR-CAT-4 a complete multi-display AV distribution solution. The compact 1U half-rack enclosure and support for cascading up to eight units provide both space efficiency and scalability for multi-zone commercial deployments.

Product Description

The AT-HDR-CAT-4 addresses the core requirement of commercial AV distribution: sending a single high-quality source signal to multiple displays reliably and at meaningful distances over structured cabling. With four independent HDBaseT outputs, each carrying 4K/UHD at 60 Hz with full 4:4:4 chroma subsampling, HDR10, HLG, and Dolby Vision formats, the unit is well-suited for environments where display quality is a priority, such as boardrooms, auditoriums, digital signage installations, and commercial reception areas. The difference between the AT-HDR-CAT-4 and its extended-distance sibling, the AT-HDR-CAT-4ED, lies in the transmission distance: the AT-HDR-CAT-4 reaches 130 feet (40 m) at 4K/HDR and 230 feet (70 m) at 1080p over Cat 6A/7, making it the right choice when cable runs are within those parameters and budget efficiency is a consideration.

Each HDBaseT output carries not only video and audio but also Ethernet, bidirectional RS-232, IR control, and Power over HDBaseT to compatible receivers, consolidating all signals onto a single structured cable run per display. This eliminates the need for separate control cable runs and local AC outlets at display endpoints. The included local HDMI pass-through output at the distribution amplifier allows a monitor to be connected directly at the rack or equipment enclosure, useful during commissioning and for displaying content at the source location. Visually lossless compression is used to maintain signal integrity of HDR and 4K/60 4:4:4 content over the HDBaseT infrastructure without perceptible quality degradation.

The AT-HDR-CAT-4 is ideal for sending HDR and 4K/60 4:4:4 content to AT-HDR-EX-70C-RX receivers for full-quality 4K performance, or to AT-UHD-EX series receivers for 4K/60 4:2:0 applications. EDID management handles communication between the source and displays, allowing integrators to lock the source output to a specific resolution regardless of display power state. CEC control passes display power commands over HDBaseT to connected receivers, enabling automatic display power management from the control system. Audio de-embedding routes PCM stereo to a balanced analog output for integration with a commercial audio system. The HDBaseT link test function verifies cable plant quality at each output, providing pass/fail feedback during commissioning without specialized test equipment.

Key Features

• 4K HDR HDBaseT Distribution — One HDMI input distributes to four HDBaseT outputs simultaneously, carrying 4K/UHD at 60 Hz with 4:4:4 chroma sampling and HDR formats using visually lossless compression.
• HDR Format Support — Compatible with HDR10, HLG, and Dolby Vision HDR formats, ensuring accurate reproduction of HDR content on compatible displays throughout the system.
• HDCP 2.2 Compliance — Supports the current HDCP specification for distributing protected 4K UHD content from streaming devices, Blu-ray players, and other HDCP 2.2 sources.
• Local HDMI Pass-Through — Dedicated HDMI output at the unit supports a local display or monitor without consuming an HDBaseT port, useful for rack-side monitoring.
• Power over HDBaseT — Remotely powers compatible Atlona HDBaseT receivers over the Cat cable, eliminating the need for local power supplies at each display endpoint.
• Audio De-Embedding — Extracts PCM stereo from the HDMI source and outputs it as a balanced +4 dBu analog signal via 5-pin captive screw for routing to commercial audio systems.
• Bidirectional RS-232 and IR Per Output — Each HDBaseT output independently extends RS-232 and IR control signals for full control system reach at every display location.
• CEC Display Control — Sends display power on/off commands over HDBaseT from the front panel, IP, or RS-232 to automate display management without separate control infrastructure.
• EDID Management — Manages EDID communication between source and displays using live EDID from connected displays or stored internal profiles, preventing resolution mismatches.
• HDBaseT Link Testing — Built-in link test evaluates cable and termination quality at each output, supporting efficient commissioning and fault isolation during installation.
• Cascade Support — Up to eight units can be cascaded from a single source for large-scale multi-display deployments without compromising signal quality.
• 1U Half-Rack Enclosure — Compact form factor with included rack and surface mounting hardware; two units mount side-by-side in a standard 19-inch rack unit.

Typical Applications

• Boardroom
• Conference room
• House of worship
• Government space
• Commercial meeting space
• Multi-purpose room
• Training room
• Auditorium

Technical Specifications

Frequently Asked Questions

Q: What is the maximum cable distance for 4K HDR transmission with the AT-HDR-CAT-4?

The AT-HDR-CAT-4 supports 4K/UHD HDR transmission up to 130 feet (40 meters) over Cat 6A or Cat 7 cable, or up to 115 feet (35 meters) over Cat 5e/6. For 1080p, the maximum distance extends to 230 feet (70 m) over Cat 6A/7 or 200 feet (60 m) over Cat 5e/6. If your installation requires 4K HDR at distances beyond 130 feet, consider the AT-HDR-CAT-4ED, which extends to 330 feet (100 m).

Q: Which Atlona receivers are compatible with the AT-HDR-CAT-4 for full 4K/60 4:4:4 HDR performance?

The AT-HDR-EX-70C-RX is the recommended receiver for full 4K/60 4:4:4 HDR performance within the standard distance range. AT-UHD-EX series receivers are also compatible for 4K/60 4:2:0 applications. Verify the receiver specifications and distance capabilities match your installation requirements before system design is finalized.

Q: Does the AT-HDR-CAT-4 support HDCP 2.2 for protected 4K content distribution?

Yes. The AT-HDR-CAT-4 is HDCP 2.2 compliant, supporting distribution of protected 4K UHD content from streaming devices, 4K Blu-ray players, and other HDCP 2.2 sources. The entire signal path from source through compatible receivers must be HDCP 2.2 compliant for protected content to pass successfully.

Q: How does the AT-HDR-CAT-4 differ from the AT-HDR-CAT-4ED?

Both units share the same feature set, HDR support, HDCP 2.2 compliance, and enclosure design. The key difference is transmission distance: the AT-HDR-CAT-4 reaches 130 ft (40 m) at 4K/HDR over Cat 6A/7, while the AT-HDR-CAT-4ED extends to 330 ft (100 m). The AT-HDR-CAT-4 is the cost-appropriate choice for installations where cable runs stay within 130 feet for 4K content.

Q: Can the AT-HDR-CAT-4 integrate with third-party control systems such as Crestron or Extron?

Yes. The unit supports TCP/IP (Telnet), RS-232, and IR control, making it compatible with control systems from Crestron, Extron, AMX, QSC, and other commercial control system manufacturers. It also integrates with Atlona Velocity with AMS for centralized IP-based device management and monitoring.

Q: Does the unit provide Power over HDBaseT to connected receivers?

Yes. The AT-HDR-CAT-4 delivers Power over HDBaseT to compatible Atlona receivers, eliminating the need for a local AC outlet at each display endpoint. This reduces installation cost and complexity, particularly in locations where running dedicated AC power to display mounting positions is difficult or expensive.

Q: What audio formats does the AT-HDR-CAT-4 pass through, and can audio be extracted for a separate sound system?

The unit passes all major audio formats including PCM, Dolby Digital, Dolby TrueHD, Dolby Atmos, DTS Digital Surround, DTS-HD Master Audio, and DTS:X over HDMI and HDBaseT. PCM stereo audio is de-embedded to a balanced +4 dBu analog output via a 5-pin captive screw connector for integration with commercial audio mixers or amplifiers.

Q: What is the warranty on the AT-HDR-CAT-4?

Atlona provides a product warranty on the AT-HDR-CAT-4. For full warranty terms and duration, refer to atlona.com/warranty. Creation Networks is an authorized Atlona reseller and can provide assistance with warranty registration and pre/post-sales support.