Ultra Encode SDI Specifications

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Input & Loop-through

  • SDI
    • Supports SD (ST 259)/HD (ST 292)/3Ga (ST 425)/3Gb (ST 425)/3Gb-DL(ST 425)/3Gb-DS(ST 425) standards
    • Typical resolution/frame rate:
      • 2048x1080p/2048x1080i 23.98/24/25/29.97/30/47.95/48/50/59.94/60
      • 1920x1080p/1920x1080i 23.98/24/25/29.97/30/47.95/48/50/59.94/60
      • 1280x720p 25/29.97/30/50/59.94/60
      • 720x576 25p/50i (PAL SD)
      • 720x480 29.97p/59.94i (NTSC SD)
    • Color sampling: YCbCr 10-bit 4:2:2, YCbCr 10-bit 4:4:4:4, YCbCr 12-bit 4:2:2, YCbCr 12-bit 4:4:4
  • Audio
    • SDI embedded audio: 16-Channel, 24-bit, 192kHz sample rate
    • Audio from 3.5 mm LINE IN: 2-Channel, 24-bit, 192kHz sample rate

Encode

  • Video
    • Bitrate: 16Mbps
    • Dual-stream encoding: main stream and sub stream
    • Main stream Resolution/frame rate:
      • 2048x1080p/1920x1200p 60/59.94/50/30/29.97/25/24/15/10/5
      • 1920x1080p/1920x720p 60/59.94/50/30/29.97/25/24/15/10/5
      • 1664x936p/1600x1200p/1600x900p 60/59.94/50/30/29.97/25/24/15/10/5
      • 1440x1080p/1440x900p 60/59.94/50/30/29.97/25/24/15/10/5
      • 1280x1024p/1280x960p/1280x800p/1280x720p 60/59.94/50/30/29.97/25/24/15/10/5
      • 1024x768p 60/59.94/50/30/29.97/25/24/15/10/5
      • 960x540p/800x600p 60/59.94/50/30/29.97/25/24/15/10/5
      • 768x576p/720x576p/720x540p/720x480p 60/59.94/50/30/29.97/25/24/15/10/5
      • 640x480p/640x360p 60/59.94/50/30/29.97/25/24/15/10/5
      • 480x360p/480x270p 60/59.94/50/30/29.97/25/24/15/10/5
    • Native CEA–608/608 over 708 captions
    • Sub stream
      • Supports enabling/disabling sub stream
      • Resolution/frame rate:
        • 1920x1080p/1920x720p 60/59.94/50/30/29.97/25/24/15/10/5
        • 1664x936p/1600x1200p/1600x900p 60/59.94/50/30/29.97/25/24/15/10/5
        • 1440x1080p/1440x900p 60/59.94/50/30/29.97/25/24/15/10/5
        • 1280x1024p/1280x960p/1280x800p/1280x720p 60/59.94/50/30/29.97/25/24/15/10/5
        • 1024x768p 60/59.94/50/30/29.97/25/24/15/10/5
        • 960x540p/800x600p 60/59.94/50/30/29.97/25/24/15/10/5
        • 768x576p/720x576p/720x540p/720x480p 60/59.94/50/30/29.97/25/24/15/10/5
        • 640x480p/640x360p 60/59.94/50/30/29.97/25/24/15/10/5
        • 480x360p/480x270p 60/59.94/50/30/29.97/25/24/15/10/5
    • H.264/H.265 (HEVC) Codec:
      • System timecode for SEI Message setting
      • H.265 (HEVC) SEI message supports carrying interlacing signal mark
      • Video aspect ratio conversion
  • Audio
    • 2-channel AAC audio
    • Bitrate: 16–1024 kbps
    • Outputs source-embedded audio and line-in audio through LINE OUT

Live stream

  • Supports native streaming to the following platforms:
    • Twitch
    • YouTube: Users can publish to a channel’s timeline or create a new live event, and set whether the stream is made for kids.
    • Facebook: Users can enable a backup stream and publish to a timeline, a business Page, or a new live event.
  • Supports streaming protocols:
    • RTSP
    • RTMP/RTMPS
    • SRT Caller/SRT Listener
    • NDI HX2
    • HLS
    • MPEG-TS over UDP/RTP
    • TVU ISSP
  • Supports up to 6 concurrent sessions, subject to the following limits:
    • Up to 6 sessions of TS over RTP and TS over UDP can run simultaneously.
    • Up to 6 SRT Caller/Listener sessions can run simultaneously, with no more than 1 SRT Listener session and up to 8 connected clients.
    • Up to 6 RTMP/RTMPS sessions can run simultaneously.
    • HLS and RTSP are each limited to 1 session and cannot run concurrently with other streaming tasks.
    • Up to 2 NDI HX2 sessions are supported; they cannot run concurrently with other streaming tasks.
  • Supports specifying a video stream and an audio stream for each streaming session
  • Supports NDI 6.x

Web UI

  • Access Web UI via PC and smartphone
  • View real-time device status
  • Preview encoded video
  • Set input sources
  • Customize encoding parameters
  • Manage streaming destinations, start/stop streaming, view streaming status
  • Set up to 8 overlays for each stream, including text, picture, and clock
  • Update firmware
  • Supports registering Magewell Control Hub for centralized management
  • Supports Microsoft Edge/Firefox/Chrome/Safari/Opera web browsers
  • Supports Stream Deck control

API

  • Provides APIs for third-party control systems

Network Connections

  • Ethernet: 1x RJ45 port, 10/100/1000 Mbps Base-T
  • Wi-Fi: 802.11 a/b/g/n/ac, Station and AP modes supported
  • 4G/5G USB modem (not supplied)
  • USB Net

Input/Output Ports

  • 2 x SD/HD/3G BNC ports
    • 1 x Input
    • 1 x Loop-through
  • 1 x 3.5mm LINE IN
  • 1 x 3.5mm LINE OUT
  • 1 x USB Type-A

LED Indicators

  • LEDs indicating the status of power, input signal, streaming, Ethernet and Wi-Fi connection

Power Supply and Consumption

  • DC 5V/3A
  • Max power consumption: ~7.16W

Form Factor

  • 106.6mm x 106.2mm x 25mm

Accessories

  • 1 x 5V Power Adapter
  • 1 x USB Type A to Type B cable
  • 1 x Wi-Fi Antenna
  • 1 x T-bracket

Screw Mounting Hole

  • 2 x M3 threaded hole
  • The T-bracket provides a standard 1/4"-20 socket

Working Environment

  • Operating temperature: 0 to 40 deg C
  • Storage temperature: –20 to 70 deg C
  • Relative humidity: 5% to 90% non-condensing

Notice

Copyright (c) 2011–2026 Magewell Electronics Co., Ltd. All rights reserved.

Specifications are based on current hardware, firmware and software revisions, and are subject to change without notice.

“MAGEWELL” is a registered trademark of Magewell Electronics Co., Ltd. All other trademarks are the property of their respective holders.