The Blackmagic Web Presenter 4K takes a 12G-SDI source and streams it straight to YouTube, Facebook, Twitter, or Twitch at up to full 2160p60 Ultra HD, giving a production a self-contained streaming encoder instead of a computer running streaming software. It's built for live event and broadcast teams who need a dedicated hardware streaming engine that won't drop frames or need a beefy PC to keep up. Because it also outputs as a plug-and-play USB webcam, the same unit doubles as a professional camera source for Zoom or Teams calls. Streams up to 2160p60 Ultra HD: Hardware streaming engine sends video directly to YouTube, Facebook, Twitter, and Twitch without a computer. Dual internet paths for redundancy: Streams via Ethernet or a tethered 5G/4G phone, with automatic failover if one connection drops. USB webcam output: Works as a plug-and-play webcam source with Zoom, Microsoft Teams, Skype, OBS, and XSplit. Built-in technical monitoring output: Displays video, audio meters, trend graphs, and SDI technical data via SDI or HDMI. 12G-SDI input with loop output: Accepts and passes through signals up to 2160p60, so multiple Web Presenters can share one source. Compact 1/3 rack-unit design: Fits three units in a single rack space, with both AC and DC power inputs for redundant power.