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AJA HELO Plus H.264 Advanced Streamer & Recorder

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  • Simultaneous Record/Dual H.264 Streams
  • 3G-SDI and HDMI Input and Output
  • Supports up to 1080p60 Video
  • PiP and Graphics Overlays
  • SD Card, USB, and NFS or CIFS Storage
  • Front-Panel Status & Audio Level LEDs
  • SRT Compatibility and Encryption
  • Web-Based GUI Preview Window
  • HELO Plus & Ki Pro Group Control
  • Calendar Integration to Schedule Events

The AJA HELO Plus H.264 Advanced Streamer & Recorder with 3G-SDI and HDMI from AJA is a compact, stand-alone unit that can stream your content to two destinations while also recording it. The AJA HELO Plus Streamer & Recorder has multiple capture options including an SD card slot, USB output, and network-based NFS or CIFS storage. It also includes advanced features such as a web GUI preview window, PiP effects with graphic overlays, group control for multiple HELO Plus and Ki Pro units, and various local and remote control options. The HELO Plus Streamer & Recorder comes with a power supply.

Portable, Stand-Alone Device

The compact, silent HELO Plus Recorder can be used in live events, sports, education, webcasts, news production, and more. This stand-alone device has stream and record buttons on the front of the unit as well as LED video and audio level indicators. The SD card and USB ports are also located on the front of the unit for easy access.

Remote or Local Control

Configure all the functions of the HELO Plus remotely via a web browser using your Ethernet connection and your laptop or desktop computer with the ability to control multiple HELO Plus units using a tabbed web browser. After setup, using the WebUI, you can control your HELO Plus unit using its front-panel buttons and audio meters, via the WebUI, or using REST API remote control.

Video and Audio Support

The HELO Plus supports HD and SD video formats up to 1080p60 with H.264/MPEG-4 encoding and 32-256 kb/s, 48 kHz, 2-ch stereo MPEG-4 AAC-LC audio.

SRT Support

Support for SRT the open-source SRT video transport protocol optimizes streaming performance across unpredictable networks with secure streams and easy firewall traversal, producing the high-quality live video over the network. The HELO Plus uses SRT (plus encryption) to deliver streaming video content securely with low latency and secure reliability.

Simultaneous Streaming & Recording

Stream and record up to 1080p60 video simultaneously in these combinations:


  • Stream to two destinations and record to local SD card storage
  • Stream to two destinations and record to local USB storage
  • Stream to two destinations and record to NFS/CIFS network storage

Calendar Integration

HELO Plus offers a scheduler that triggers pre-planned start/stop recording and streaming for AV, live events, houses of worship, webcasting, corporate communications, production, and post projects requiring definitive schedules. The schedule may be programmed locally through HELO Plus' web UI, importing .ics files, or linking to external schedulers like Google Calendar.

Multiple-Input Layouts

Use the HELO Plus to combine multiple SDI and HDMI inputs into a single screen with a graphic element overlay with up to three layers. Each live video source can be downscaled for PiP use with internally generated mattes positioned over the PiP element. Up to 10 layouts can be stored and recalled in each of the 20 presets and 90+ images can be stored internally.

Dual Streaming Outputs

The HELO Plus uses dual encoders for its streaming outputs, offering the flexibility to create different output settings from a single input source. These two encoders can be set to different packaging settings and different output frame sizes, enabling a single content stream to be presented in two ways to serve a wider audience. A single stream can also be duplicated across both encoders for added resilience. Either of these encoder outputs can serve as the source for the HELO Plus recording system as well.

In the Box
  • AJA HELO Plus H.264 Advanced Streamer & Recorder with 3G-SDI and HDMI
  • Power Supply
  • Limited 3-Year Warranty
More Information
Product ConditonNew

IP Encoding/Decoding

IP Video H.264: 1920 x 1080 at 23.98p, 24p, 25p, 29.97p, 30p, 50i, 50p, 59.94i, 59.94p, 60i, 60p (100.00 to 20,000 Kb/s) Encoding 1280 x 720 at 50i, 50p, 59.94i, 59.94p, 60i, 60p (100.00 to 20,000 Kb/s) Encoding 704 x 480 at 50i, 60i (100.00 to 20,000 Kb/s) Encoding
IP Audio AAC-LC: Encoding
Transport Protocols HLS, RTMP, RTMPS, RTP, RTSP, UDP
Simultaneous Streams 2 Streams
Wi-Fi None
Bluetooth None


Video I/O 1 x BNC (3G-SDI) Input 1 x BNC (3G-SDI) Output 1 x HDMI (HDMI 1.4a) Input 1 x HDMI (HDMI 1.4a) Output
Audio I/O 1 x 1/8" / 3.5 mm TRS Stereo Analog Input 1 x 1/8" / 3.5 mm TRS Stereo Analog Output
Other I/O 1 x RJ45 (10/100/1000 Ethernet) Input/Output
Video Standard Compliance SMPTE 292M/296M/424M
Embedded Audio SDI: 2-Channel HDMI: 2-Channel

Internal Recording

Recording Media 1 x USB-A 3.0 / 3.1/3.2 Gen 1 1 x SDXC, SDHC


Power Connector 1 x Proprietary (12 VDC) Input
Power Consumption Power Supply: 100 to 240 VAC (60 W)


Operating Temperature 32 to 72°F / 0 to 40°C
Operating Humidity 10 to 90% (Non-Condensing)
Storage Temperature -40 to 140°F / -40 to 60°C


Display Yes
Dimensions 8.5 x 5.5 x 1.02" / 215.9 x 139.7 x 25.91 mm
Weight 1 lb / 460 g

Packaging Info

Package Weight 3.04 lb
Box Dimensions (LxWxH) 10.3 x 10.2 x 3.9"
WARNING: This product may expose you to chemicals which are known to the State of California to cause cancer. For more information go to
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