
In Stock


Standalone SDI encoder with professional XLR audio I/O.
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 Plus is the Ultra Encode SDI plus professional XLR audio I/O. For broadcast facilities and live-production venues with balanced XLR audio infrastructure, this combines SDI-to-IP encoding with proper audio integration in one box.
The SDI signal carries embedded audio (up to 16 channels) but in many facilities the production mix happens externally on a dedicated audio console — not in the SDI embedder. The XLR inputs let that external mix feed directly into the encoded stream, replacing the SDI-embedded audio if needed. XLR output lets the encoder feed audio back to monitoring infrastructure.
Common in broadcast facilities where audio and video chains are managed separately, in sports productions where commentary audio is mixed at the OB position rather than embedded into camera SDI, and in live-event productions with dedicated FOH consoles.
| SKU | 531600000 |
| Brand | Magewell |
| Category | Ultra Encode |
| Form Factor | Standalone encoder — 145mm × 95mm × 32mm |
| Video Input | 1× BNC (SD/HD/3G/6G-SDI) — max: 4096×2160 30fps via 6G |
| 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) — Max 62Mbps (NDI HX3) / 32Mbps (others) |
| 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/SD — Scheduling — FTP/Dropbox/Google Drive upload |
| Network | 1× RJ45 Gigabit Ethernet — Wi-Fi 802.11 a/b/g/n/ac (Station & AP modes) — Optional 4G/5G USB modem |
| Display / Control | Web UI preview — No LCD (web-managed) |
| 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 | 145mm × 95mm × 32mm |
| 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-plus ↗
Everything included in the box with the Ultra Encode SDI Plus. 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 Plus. 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 Plus 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 Plus supports RTMP, RTMPS, RTSP, SRT, NDI|HX. It can stream simultaneously to multiple destinations.
The Ultra Encode SDI Plus encodes using H.264 and HEVC hardware encoding, delivering low-latency output without putting load on a host CPU.
The Ultra Encode SDI Plus accepts 1x 3G/HD/SD-SDI with loop-through.
The Ultra Encode SDI Plus 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 Plus supports NDI|HX output, allowing it to send video over your network to NDI-compatible receivers.