Blackmagic Design Streaming Encoder 4K – 4K Ultra HD Live Streaming via SRT & RTMP, SDI Input, Ethernet + Mobile, Includes 6ft Power Cord (BDLKWEB/D/SED4K)

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4K & HD STREAMING IN H.264 AND H.265 – Self-contained processor supporting H.264 and H.265 encoding in HD or Ultra HD (up to 2160p60) via SRT or RTMP, streaming directly to YouTube, Facebook, X, Twitch, Zoom, Microsoft Teams, OBS, Wowza, and many more — no encoding PC needed.
12G-SDI INPUT WITH STANDARDS CONVERSION – Supports input resolutions up to DCI 4K60 with an SDI input and SDI loop output, plus Teranex-powered automatic standards conversion so any HD or Ultra HD source streams cleanly at any target resolution.
DUAL MONITOR OUTPUTS – Features both SDI and HDMI monitor outputs with a user-configurable standards converter on both the 12G-SDI Out and 4K HDMI Out, so you can feed a confidence monitor or downstream device at any required format independent of your streaming standard.
ETHERNET + 5G/4G MOBILE WITH AUTO-FAILOVER – Connect via Gigabit Ethernet (10/100/1000BASE-T) or tether a smartphone via USB-C for mobile data, with automatic switchover between connections — ensuring your stream stays on air even if the primary internet connection drops.
CLOSED CAPTIONS, TIMECODE & REST API – Supports embedding CEA-608 and CEA-708 closed captions in live RTMP streams, source timecode over RTMP and SRT, and offers a REST API over Ethernet for external HTTP control — ideal for broadcast automation and accessibility-compliant workflows.
CAMERA CONTROL, TALLY & TALKBACK – Supports remote camera control, color correction, tally, and talkback for compatible Blackmagic Design cameras via SDI, enabling a full remote production control room workflow when used with the Streaming Decoder 4K.
FRONT PANEL + USB WEBCAM OUTPUT – Built-in control panel with 6 buttons, spin knob, and 2.2-inch color LCD for on-device monitoring and control. Dual USB-C ports also function as webcam outputs, routing broadcast-quality SDI video into any software that supports a webcam.

Product Description

The Blackmagic Design Streaming Encoder 4K is a professional-grade, self-contained streaming processor for live events, broadcast facilities, remote production, and high-end content creation. It supports H.264 (via RTMP) and H.265 (via SRT) at resolutions up to 2160p60, delivering broadcast-quality Ultra HD streams directly to the world's major platforms without requiring a dedicated encoding computer.At the heart of the unit is a 12G-SDI input with Teranex standards conversion — accept any Ultra HD or HD SDI video and automatically convert it to the desired streaming standard, enabling live production at higher quality than the intended streaming resolution. The 12G-SDI loop output allows multiple encoders to share the same source for redundant or multi-platform streaming.Both the 12G-SDI Out and 4K HDMI Out can be independently configured to output at any supported HD or Ultra HD standard, giving you flexible routing to monitors, switchers, or recording devices regardless of your streaming format. For accessibility and broadcast compliance, CEA-608 and CEA-708 closed caption embedding and source timecode passthrough are supported over RTMP and SRT.The encoder integrates into automated broadcast environments via its REST API, supports Blackmagic Cloud streaming, and pairs natively with the Streaming Decoder 4K for point-to-point remote video links with full tally, talkback, and camera control returned over the internet. The free Blackmagic Streaming Utility software allows remote configuration and firmware updates for multiple units across a network. A compact 1/3 rack width form factor makes it equally at home on a broadcast desk, in a fly pack, or in a permanent installation.