SEO Title: 4K60 HDMI NDI Live Stream Switcher with UVC Output | TCHD-840 Pro
Meta Description: 4-channel 4K60 HDMI and NDI hybrid live stream switcher with Type-C UVC output, H.264/H.265 hardware encoding, SRT and RTMP streaming to four platforms.
URL Slug: /live-stream-switcher-tchd-840-pro
4K60 HDMI NDI Live Stream Switcher with UVC Output TCHD-840 Pro
Product Summary
The TCHD-840 Pro is an all-in-one live stream switcher for multicamera production. It accepts four 4K full-frame-rate HDMI and NDI hybrid inputs, switches them with broadcast-grade stability, and outputs through an exclusive Type-C UVC port that Windows and macOS recognise as a standard HD webcam. H.264 and H.265 hardware encoding, dual Gigabit ports and an aluminum alloy housing keep long commercial broadcasts running without a capture card or an extra host PC.
TCHD-840 Pro switcher, 4-channel 4K60 HDMI and NDI hybrid input with Type-C UVC output.
Key Features
- 4-channel 4K HDMI and NDI hybrid input with 1x4K60, 2x4K30 and 4x1080P decoding modes - one chassis carries a full multi-camera show at ultra-low latency.
- Type-C UVC output without a capture card - recognised as an HD webcam by Windows and macOS, so studios remove one piece of hardware from every setup.
- H.264/H.265 hardware encoding with RTMP, RTMPS, SRT, UDP, RTP, HLS and WHIP - stream to four independent platforms with adjustable bitrate and delay.
- 3.5mm audio in and out with multi-source mixing - blends HDMI embedded, NDI, DDR playback and external microphone audio, with independent volume, mute and 0-10000 ms delay tuning.
- 36+ transitions, T-Bar control, chroma and luma keying, PIP split-screen, logo overlay and scrolling CG subtitles plus multi-format segmented USB recording.
- Dual Gigabit network ports, TALLY linkage and an aluminum alloy housing for continuous commercial operation.
Technical Specifications
| Model | TCHD-840 Pro |
| Input | 4-channel 4K full-frame-rate HDMI and NDI hybrid signal input |
| Decoding modes | 1x4K60, 2x4K30, 4x1080P |
| Video output | Type-C UVC output, recognised as an HD webcam by Windows and macOS |
| Encoding | H.264 and H.265 professional hardware encoding |
| Streaming protocols | RTMP, RTMPS, SRT, UDP, RTP, HLS, WHIP |
| Simultaneous platforms | Up to 4 independent platforms, adjustable bitrate and delay |
| Audio | 3.5mm audio input and output; mixing of HDMI embedded, NDI, DDR playback and external microphone audio; independent volume and mute; 0-10000 ms audio delay |
| Effects | 36+ transition effects, T-Bar manual control, chroma and luma keying, multi-window PIP split-screen, logo overlay, scrolling CG subtitles |
| Recording | Multi-format segmented USB recording |
| Networking | Dual Gigabit network ports, TALLY linkage |
| Screen modes | One-click switch between 16:9 landscape and 9:16 portrait |
| Housing | Aluminum alloy |
Models and Options
The TCHD-840 Pro is offered as a single hardware platform with selectable working configurations. Buyers choose the decoding mode that matches their camera count: 1x4K60 for a single high-frame-rate hero feed, 2x4K30 for two-camera productions, or 4x1080P for four-camera shows. Output orientation switches in one click between 16:9 landscape and 9:16 portrait, and bitrate plus delay are adjustable per platform for multi-channel distribution.
Materials and Structure
The unit is housed in an aluminum alloy chassis sized for rack or desk use in fixed studios and mobile production. Its control surface carries a T-Bar manual control for live transitions. Connections include the Type-C UVC video output, 3.5mm audio input and output ports, and dual Gigabit network ports, with TALLY linkage for camera operator signalling. All switching, encoding and recording run on the built-in embedded system.
Applications
Built for multicamera live streaming to the internet or broadcast: e-commerce livestreaming, show-style and talent show streaming, education and remote teaching, live esports events, corporate conferences, business presentations, training and large-scale event broadcasts. Portrait mode suits mobile-first commerce channels, while the NDI and 4K inputs suit studio and venue production.
Customization
TCHD Video has produced video hardware since 2005 and supports customized development based on different customer requirements, backed by a 10-engineer R&D team, a 10,000 m2 factory and an annual output of 4000 units. Share your camera count, platform list and audio workflow and the team will confirm the configuration that fits.
FAQ
Can this switcher run without an external capture card?
Yes. The Type-C UVC output is natively recognised as an HD webcam by Windows and macOS with no driver installed.
Which live streaming and conference software does it work with?
It is compatible with OBS, Zoom and other mainstream live streaming and conference software on Windows and macOS.
How many platforms can I stream to at the same time?
Up to four independent platforms simultaneously, each with adjustable bitrate and delay.
Does it support portrait live streaming?
Yes. Landscape 16:9 and portrait 9:16 modes switch with one click on the same unit.
How does audio mixing work?
The 3.5mm input and output ports mix HDMI embedded, NDI, DDR playback and external microphone audio, with independent volume, mute and 0-10000 ms delay tuning.
What input resolution modes are available?
Four channels of 4K full-frame-rate HDMI and NDI hybrid input, covering 1x4K60, 2x4K30 and 4x1080P decoding modes.
Inquiry Information
Contact: Leo Chen
Email: tomzhang@tchdvideo.com
Tel: +86-13910334207 | WhatsApp: +86 19498872019
Address: Room#411, Building#1, Yard#9, Lianqiao 2nd street, Haidian district, Beijing, China
Image Filename and Alt Suggestions
- Available image: 840Pro.png (image ID 70). Suggested filename: live-stream-switcher-tchd-840-pro-front-panel.png
- Alt text: TCHD-840 Pro live stream switcher front panel with 4K HDMI and NDI inputs