
In Stock


Standalone SDI hardware encoder — broadcast SDI to IP without a PC.
Ask us a quick question about this product — signal compatibility, use case fit, or anything technical. We usually reply the same day.
The Ultra Encode SDI is the SDI sister to the Ultra Encode HDMI — a standalone hardware encoder that bridges 3G-SDI sources into IP distribution networks without any host PC. Active SDI loop-through keeps the downstream broadcast chain running while encoding.
For broadcast and live-production facilities migrating from SDI to IP-based delivery, this is the bridge between legacy camera infrastructure and modern streaming workflows. SDI cameras stay in place; the Ultra Encode SDI sits at the camera position or in the equipment rack and encodes the feed for RTMP, RTSP, SRT or NDI|HX distribution.
Common deployments include broadcast venues streaming SDI camera feeds to remote viewing platforms, sports productions streaming to OTT services, and corporate broadcast facilities pushing SDI-based programme output to internal streaming systems.
| SKU | 531200000 |
| Brand | Magewell |
| Category | Ultra Encode |
| Form Factor | Standalone encoder — 135mm × 87mm × 30mm — 310g |
| Video Input | 1× BNC (SD/HD/3G-SDI) — max: 2048×1080 60fps — SD/HD/3Ga/3Gb |
| Loop-through | 1× BNC (SDI loop-through) |
| Audio Input | SDI embedded (up to 8-ch, 24-bit, 48kHz) — 3.5mm line in |
| Audio Output | 3.5mm headphone/line out |
| Encoding | Video: H.264 (AVC), H.265 (HEVC), SpeedHQ — Audio: AAC-LC, AAC-HE, MP3 — Container: MP4, MOV, TS — Dual stream (main + sub) — Up to 32Mbps |
| Streaming Protocols | RTMP/RTMPS — RTSP — SRT Caller/Listener (AES-128/192/256) — NDI® HX2/HX3 — HLS — TS over UDP/RTP — TVU ISSP — RIST Listener — Zixi |
| Destinations / Recording | YouTube, Facebook Live, Twitch, custom RTMP/RTMPS — Up to 6 simultaneous streaming destinations — Record to USB storage — Scheduling |
| Network | 1× RJ45 Gigabit Ethernet — Wi-Fi 802.11 a/b/g/n/ac (Station & AP modes) — Optional 4G/5G USB modem |
| Display / Control | 1.9" LCD (320×172) with real-time preview, audio meter, status — Tap controls |
| Management | Web UI (Chrome/Firefox/Edge/Safari/Opera) — Magewell Control Hub — Zixi ZEN Master — REST API for 3rd party integration |
| Power | 12V DC adapter — Max 18W |
| Dimensions | 135mm × 87mm × 30mm — 310g |
| Working Environment | Operating: 0°C to 45°C — Storage: −20°C to 70°C — Humidity: 5–90% non-condensing |
| UK Stock | In Stock |
| Warranty | 2–3 Years (Magewell manufacturer warranty) |
Full specifications: magewell.com/tech-specs/ultra-encode-sdi ↗
Everything included in the box with the Ultra Encode SDI. Part numbers and accessory images from official Magewell documentation.




If anything is missing from your delivery, contact us within 7 days and we will arrange a replacement.
Official Magewell documentation for the Ultra Encode SDI. Datasheet is mirrored on our server for direct download; drivers, firmware and software live on Magewell's download centre and open in a new tab.
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No. The Ultra Encode SDI is a standalone hardware encoder — it requires no PC or host software. It connects to your network and is managed via Web UI / REST API. Simply connect your video source, configure the stream destination once, and it operates independently.
The Ultra Encode SDI supports RTMP, RTMPS, RTSP, SRT, NDI|HX. It can stream simultaneously to multiple destinations.
The Ultra Encode SDI encodes using H.264 + HEVC hardware hardware encoding, delivering low-latency output without putting load on a host CPU.
The Ultra Encode SDI accepts 1x 3G/HD/SD-SDI with loop-through.
The Ultra Encode SDI is configured via Web UI / REST API. Access the web interface by entering the device's IP address in any browser on the same network. No software installation is required.
Yes — the Ultra Encode SDI supports NDI|HX output, allowing it to send video over your network to NDI-compatible receivers.