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Atlona® Single-Channel Networked AV Decoder
Atlona® Single-Channel Networked AV Decoder 0
Atlona® Single-Channel Networked AV Decoder 1

Atlona® Single-Channel Networked AV Decoder

Model #: AT-OMNI-521
At a Glance
The Atlona OmniStream™ 521 (AT-OMNI-521) is a single-channel networked AV decoder for HDMI / HDCP 2.2 output supporting resolutions up to 4K @ 60 Hz and HDR (High Dynamic Range), and RS-232 or IR pass-through.
Price Starting At
$1,100.00Save $NaN

Get to know this product.

The Atlona OmniStream™ 521 (AT-OMNI-521) is a single-channel networked AV decoder for HDMI / HDCP 2.2 output supporting resolutions up to 4K @ 60 Hz and HDR (High Dynamic Range), and RS-232 or IR pass-through. It is part of the OmniStream R-Type Series, designed for high performance, flexible distribution of AV over standard, off-the-shelf Gigabit Ethernet switches in light commercial audiovisual applications. The OmniStream 521 is HDCP 2.2 compliant and ideal for the latest Ultra High-Definition and HDR sources. It features advanced high-quality, VC-2 visually lossless video compression, optimized for motion video content. The Atlona OmniStream 521 achieves extremely low, sub-frame latency when paired with OmniStream AV encoders. This single-channel decoder is housed in a half-width rack enclosure with front-to-back air flow, and is ideal for high-density, compact installation in distributed, multi-display installations.

Easy to Configure, Simple to Manage

OmniStream AV over IP systems are remarkably easy to set up and manage – whether for a meeting room, divisible room, or an entire university campus. Atlona Management System (AMS) 2.0 features automatic network device discovery, plus an intuitive web-based GUI that lets you configure virtual routing for AV, control, and data over the network – just as easily as you would with conventional AV matrix switching. AMS also streamlines and simplifies management of OmniStream systems through continuous system monitoring, notifications and alerts, event logging, multi-device configuration and backup, automated firmware updates, remote device control, and more.

OmniStream Product Compatibility

The OmniStream 521 is compatible with the OmniStream 512 encoder. It is also compatible with the OmniStream 111, OmniStream 111 WP, and OmniStream 112 encoders when Video Optimization is set to Motion Video mode.


  • Multi-room or multi-zone AV systems – OmniStream R-Type enables cost-effective system design, allowing the connection of any number of sources to any number of displays. OmniStream delivers equal performance over new or legacy network cable infrastructure, including CAT 5e.
  • Bars, restaurants, offices, meeting spaces, and other commercial environments – Expand the system by adding encoders and decoders, making video wall, digital signage, and many other applications simple and easy.
  • High quality AV presentations – OmniStream R-Type delivers the uncompromising performance of traditional baseband video systems, making it ideal for applications where both image quality and low latency are crucial.

Atlona AV Over IP Certification

Atlona is pleased to offer Atlona AV Over IP Certification through free, InfoComm-certified and accredited online education courses. With AV Over IP Certification, you’ll have the credibility, knowledge, and confidence to inform your customers on the ideal networked AV system solutions for their requirements, and deliver quality sales and technical support whenever necessary.

Atlona Professional Services

Atlona provides project design, configuration and management services to system designers and integrators working with OmniStream AV over IP products. A trusted authority in providing support and guidance during the system design and deployment phases, Atlona will work with you to ensure optimal performance and efficiency in your AV over IP projects.

  • Best-in-class AV over IP performance and reliability over Gigabit Ethernet
  • AV decoder for HDMI® up to 4K/UHD, plus embedded audio and RS-232 or IR control pass-through
  • Supports UHD @ 60 Hz plus HDR formats
  • Pristine-quality downscaling and upscaling
  • Simplify integration with plug-and-play network switch compatibility
  • Remotely powered via PoE (Power over Ethernet)
  • Enhance AV presentations with visual enhancements and video wall processing

Misc. Specs

Depth (in.)4.41
Width (in.)8.19
Height (in.)1.34
Manufacturer Warranty10 Year
Product Weight (lbs.)1.5
WarningProposition 65 Warning for California Residents