Atlona AT-OME-SR21

Overview

The Atlona AT-OME-SR21 is a 4K HDMI-to-HDBaseT scaling receiver designed to streamline video conferencing and AV distribution by transmitting HDMI video, embedded audio, Ethernet, control signals, and USB data over a single HDBaseT connection up to 330 feet. It supports both 4K and HD video scaling to ensure optimal display quality and includes a local HDMI input for easy source switching. This receiver is well suited for meeting rooms, classrooms, and conference spaces that require reliable, high-quality AV extension and integration.

Key features

• HDBaseT receiver with a local HDMI input that allows seamless switching between local and extended sources without additional hardware
• Video upscaling and downscaling capabilities to match 4K or HD displays, ensuring consistent image quality across different screens
• USB 2.0 extension over HDBaseT up to 330 feet, enabling connection of peripherals such as cameras and microphones essential for video conferencing
• Dual Ethernet ports functioning as a network switch to simplify network setup and reduce cable complexity in AV environments
• Audio de-embedding with volume control, providing flexible management of sound output and support for multi-channel audio formats for advanced audio configurations
• Power over Ethernet (PoE) support to power connected transmitters through the same cable, minimizing cable clutter and installation complexity
• EDID and HDCP 2.2 management to maintain compatibility and smooth communication between source and display devices
• Integrated relays for controlling motorized screens or lifts, allowing centralized control of AV environment components
• Compact and low-profile design that fits discreetly into various installation spaces without interfering with room aesthetics

Key specs

• Video resolution support: up to 4K UHD
• HDBaseT extension distance: up to 330 feet (100 meters)
• USB extension: USB 2.0 over HDBaseT
• Ethernet ports: dual RJ45 acting as a network switch
• Audio support: multi-channel audio formats with de-embedding and volume control
• Power: Power over Ethernet (PoE) support
• HDCP version: 2.2 compliant
• EDID management: integrated for compatibility
• Control: integrated relays for motorized screen or lift control
• Physical design: compact, low-profile form factor

Connectivity and compatibility

This receiver integrates multiple signal types into a single HDBaseT connection, simplifying complex AV setups. The local HDMI input allows direct connection of a source device, while the HDBaseT input extends signals from a transmitter unit. Dual Ethernet ports serve as a built-in network switch, reducing the need for additional networking hardware. USB 2.0 extension supports peripherals critical for video conferencing, such as cameras and microphones, ensuring seamless integration with your existing devices. The unit’s support for HDCP 2.2 and EDID management guarantees compatibility with a wide range of displays and source equipment.

Ideal uses and environments

The AT-OME-SR21 is a strong choice for professional meeting rooms, classrooms, and conference spaces where high-quality AV distribution over long distances is required. Its ability to handle 4K video and multi-channel audio makes it suitable for environments demanding clear visuals and rich sound. The USB extension and integrated relays add convenience for video conferencing setups and automated AV control, making it a practical solution for organizations looking to enhance collaboration and streamline AV management.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, and include all tags, manuals, accessories, and original, unaltered packaging. To start a return, please email us for approval. Items sent back without approval may be refused or returned to the sender. If any item is kept, its value will be deducted from the refund.

Non-returnable items include opened TVs, combos, or monitors 37″ or larger, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method. Please allow 5–7 business days for the credit to post. Shipping and handling are nonrefundable. If an item is used, incomplete, or not in its original condition, a 30% restocking fee may apply. Direct exchanges are not offered. To exchange an item, please purchase the replacement separately and return the original for a refund.

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We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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