Blackmagic Streaming Encoder 4K is a compact, self-contained streaming processor that encodes HD and Ultra HD in H.264 or H.265 for RTMP and SRT delivery. It accepts a 12G-SDI input and provides SDI loop and monitor outputs, plus an HDMI monitor output and a USB-C webcam output up to 2160p60. Ethernet streaming, embedded audio, CEA-608/708 captions, REST API control and a built-in 2.2-inch LCD support professional broadcast workflows.