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Atlona® OmniStream™ R-Type Single-Channel Networked AV Decoder

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The Atlona® OmniStream™ 521 is a single-channel networked AV decoder for HDMI 2.0/HDCP 2.2 output supporting resolutions up to 4K @ 60 Hz and HDR (High Dynamic Range), and RS-232 or IR pass-through.

Atlona® OmniStream™ R-Type Single-Channel Networked AV Decoder

The Atlona® OmniStream™ 521 is a single-channel networked AV decoder for HDMI 2.0/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, and off-the-shelf Gigabit Ethernet switches in residential and 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 that is 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.

High Performance 4K HDR

OmniStream R-Type supports 4K HDR, including HDR10 @ 60 Hz and 10-bit color, as well as HLG (Hybrid Log-Gamma) for future 60p HDR broadcast services. OmniStream delivers the image quality you demand from baseband video, using high performance, visually lossless compression optimized for fast-motion video content.

Ultra-Low Latency

OmniStream R-Type delivers the best of both worlds – uncompromised picture quality and just half a frame of encode-decode latency, the lowest for any AV over Gigabit Ethernet platform. This equates to a delay of just 8 milliseconds with 60 Hz video.

Plug and Play Compatibility with Network Switches

OmniStream R-Type is ready to go with industry-leading network switches from Cisco and others. All you need to do is connect your devices to the network and upload a configuration file to the switch. Forget about tedious manual setup procedures.

Works with Existing Network Cabling

One of the most significant costs of AV integration is new cabling infrastructure. The beauty of OmniStream is that it’s ready for use with the network cabling already in place for a residence or facility, going as far back as CAT 5e.

HDMI 2.0, HDCP 1.4 / 2.2
4096×2160(DCI)@60/30/24 Hz, 3840×2160(UHD)@60/50/24/25/30 Hz, 1080p@23.98/24/25/29.97/30/50/59.94/60 Hz, 1080i@25/29.97/30 Hz, 720p@30/50/59.94/60 Hz
NOTE: UHDp60 only supports 4:2:0, scaling and deinterlacing is not supported at 1080i.
1920×1200, 1680×1050, 1600×1200, 1600×900, 1440×900, 1400×1050, 1366×768, 1360×768, 1280×1024, 1280×800, 1280×768, 1152×768, 1024×768
NOTE: All VESA resolutions are 60Hz.
One decoding engine
VC-2 (SMPTE-2042)
4:4:4, 4:2:2, 4:2:0
Motion Video
8-bit, 10-bit, 12-bit
HDR10, HLG, Dolby Vision
NOTE: Dolby Vision requires a separate license.
900 Mbps
Bit Depth: Up to 24-bit
0.5 frame (e.g. 1080p @ 60 Hz latency is < 8 ms between encoder and decoder), 1.5 frames in Fast Switching mode (e.g. 1080p @ 60 Hz latency is < 24 ms between encoder and decoder)
NOTE: Unusual network configurations may increase overall latency
LPCM 2.0, LPCM 5.1, LPCM 7.1, Dolby® Digital, Dolby Digital Plus, Dolby TrueHD, Dolby Atmos®, DTS®, DTS-HD Master Audio™
Multichannel LPCM to two-channel LPCM
32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz
DHCP, static
HTTPS, SSH, SCP, and WebSockets with TLS
CEC: Supported and triggered from control systems and OmniStream encoders
RS-232 Device control and configuration; supports baud rates from 2400 to 115200
RS-232 Bidirectional pass-through from control system to network
Bidirectional TCP Proxy
HDMI: 1 – Type A, 19-pin, female, locking
Ethernet: 1 – RJ45, 10/100/1000 Mbps
NOTE: Maximum distance per hop 300ft (100m), depending upon network connection.
RS-232 / IR: 1 – Phoenix, 6-pin (2 ports); RS-232 on port 1 and 2, IR on port
IEEE 802.3af
Up to 12W
14-122°F (-10-50°C)
20-95% non-condensing
1.5 lb
8.2" x 1.3" x 4.4" (208mm x 34mm x 112mm)
HDMI Compliance
Video Resolution
VESA Resolution
Compression Format
Chroma Subsampling
Video Quality Optimization
Color Depth
Video Processing
Bit Rate
Audio Pass Through
Audio Down Mixing
Supported Sample Rates
Audio Transport
Network Addressing
Supported Network Protocols
Control Port
PoE Features
Power Consumption
Operating Temperature
Operating Humidity
Dimensions (W x H x D)

Affiliate Warranty

We want to make our Affiliate program as easy as possible. That’s why we process all claims directly, without any third party telephone tag. Specific warranty terms and details from the manufacturer are below. View the full Atlona® Warranty.