Ultra Stream SDI

The Magewell Ultra Stream SDI is a standalone live streaming and recording encoder purpose-built for broadcast and professional AV environments where the source is SDI rather than HDMI. Accepting 3G-SDI inputs at up to 2048×1080 60fps with a dedicated SDI BNC loop-through, it encodes dual streams in H.264 or H.265 for simultaneous streaming to YouTube Live, Facebook Live, Twitch or any RTMP destination — while recording locally to internal 32GB SD storage, a USB flash drive or a paired mobile device, all with a single button press. Connecting via Gigabit Ethernet, Wi-Fi 802.11ac or 3G/4G USB mobile broadband modem, it is the definitive hardware streaming solution for broadcast cameras, studio SDI sources and professional AV systems that demand SDI connectivity without compromising on simplicity of operation. Supplied by iView Data, authorised UK Magewell distributor, with full UK warranty and same-day dispatch from UK stock.

Core Functions & Capabilities

• 3G-SDI Input with Loop-Through: Accepts SD, HD and 3G-SDI sources (ST 259, ST 292, ST 425) at up to 2048×1080 60fps — with a dedicated BNC SDI loop-through output that simultaneously passes the full input signal to a monitor, router or downstream SDI device without any signal interruption or quality loss.
• One-Button Live Streaming: Physical start/stop button on the device initiates and ends live streams to YouTube Live, Facebook Live, Twitch or any custom RTMP/RTMPS/RTSP server — no computer, no software and no technical operator required at the device location during a live broadcast.
• Dual Stream Encoding — Stream & Record Simultaneously: Encodes a main stream (up to 8Mbps) and a sub stream (up to 2Mbps) simultaneously — with independent resolution, frame rate and bitrate settings for each, enabling full-quality local recording while streaming at a lower bitrate for efficient delivery.
• H.264 & H.265 (HEVC) Encoding: Supports both H.264 and H.265 video encoding with AAC audio at 48kHz 16-bit — delivering professional broadcast-quality streams at efficient bitrates, with H.265 reducing bandwidth requirements by up to 50% compared to H.264 at equivalent quality.
• 16-Channel SDI Embedded Audio: Captures all 16 channels of SDI-embedded audio for recording and streaming — significantly more than the 8-channel HDMI audio of the Ultra Stream HDMI, making it the right choice for multi-channel broadcast audio workflows.
• Analogue Audio I/O: 3.5mm microphone input embeds external analogue audio into the SDI loop-through output as well as the encoded stream — and 3.5mm headphone output for confidence monitoring of SDI embedded and microphone audio simultaneously.
• Flexible Recording Options: Records simultaneously to 32GB internal SD storage, a USB flash drive (both MP4 or MOV) and a paired mobile device — with configurable durations, auto-recording, loop recording and file upload to FTP, Dropbox or Google Drive.
• Two Simultaneous Streaming Destinations: Stream to two different platforms or RTMP servers simultaneously — reach YouTube Live and Facebook Live at the same time, or combine a platform stream with a custom RTMP server for parallel distribution.

Key Features

• iOS & Android App Control: Full streaming, recording and settings management via an intuitive smartphone app — connect over Bluetooth 4.0 BLE for initial pairing then manage over Wi-Fi. No web interface or laptop required for routine operation in the field or during a live event.
• Triple Connectivity — Ethernet, Wi-Fi & 4G: Wired Gigabit Ethernet, Wi-Fi 802.11 a/b/g/n/ac or an external 3G/4G USB mobile broadband modem (not included) — reliable streaming from any location including venues and field positions without stable Wi-Fi.
• Microphone Audio Embedded in SDI Loop-Through: A unique feature of the Ultra Stream SDI — the 3.5mm microphone input audio is embedded into the SDI loop-through BNC output as well as the encoded stream, enabling a microphone to be added to the SDI signal path without a separate audio embedder.
• 32GB Internal SD Storage: Built-in 32GB internal storage enables recording without an external USB drive — upload recordings via FTP, Dropbox or Google Drive directly from the web interface.
• Control Hub Compatible: Registers with up to two Magewell Control Hub platforms for centralised management, firmware updates and real-time status monitoring across multiple Ultra Stream devices.
• Browser-Based Web GUI: Full configuration including stream profiles, network settings, colour parameters, no-signal image and firmware updates via any modern browser — IE, Edge, Firefox, Chrome, Safari and Opera.
• Ultra-Compact Form Factor: 94.2 × 94.2 × 22.3mm — identical dimensions to the Ultra Stream HDMI, fits in a camera bag or mounts on any surface. Lightweight for field deployment, robust for permanent installation.
• HTTP APIs: Full HTTP API access for integration with third-party control systems and custom enterprise management workflows.

Ideal For

• Broadcast Cameras & SDI Production Systems: Stream directly from any 3G-SDI broadcast camera, ENG camera or production switcher SDI output — loop-through maintains the existing SDI signal path to a monitor or router while the encoder delivers the live stream in parallel.
• Houses of Worship — SDI Camera Streaming: Stream weekly services from installed SDI cameras to YouTube Live and Facebook Live simultaneously — one button press starts the stream, with the smartphone app providing remote monitoring and control without touching the device.
• Live Events & Sports — SDI Sources: Stream live events, sports fixtures and concerts from SDI production equipment — connect via 4G mobile broadband modem for reliable streaming from venues without stable Wi-Fi, with loop-through maintaining the existing SDI display or recording chain.
• Education & Lecture Streaming: Stream and record lectures from SDI-connected lecture theatre cameras — internal SD recording and simultaneous streaming to your platform of choice, with Dropbox or Google Drive upload for immediate post-session sharing.
• OB Trucks & Mobile Production: Compact standalone streaming from OB truck SDI sources without a dedicated streaming PC — reliable dual-destination RTMP streaming from the production switcher output with loop-through maintaining the house feed.
• Medical & Clinical Broadcasting: Stream from SDI-connected surgical cameras and medical imaging systems to secure RTMP servers for telemedicine, remote consultation and clinical training without a PC at the imaging location.

Ultra Stream HDMI vs Ultra Stream SDI — Which Should You Choose?

Magewell Part Number: 53020 (UK: 53023). Full technical specifications are available on the Specifications tab above. 3G/4G USB modem not included. Internal SD card 32GB. Supplied by iView Data, authorised UK Magewell distributor, with full UK warranty and same-day UK dispatch.