4K 60Hz HDMI 2.0 Live Stream Switcher with UVC Webcam Output
Product Summary
The TCHD-840 Ultra is a full-hardware live stream switcher built on an embedded FPGA architecture for ultra-high stability in extended multicamera productions. This HDMI 2.0 configuration accepts four HDMI 2.0 inputs, so camcorders, DSLR or mirrorless cameras, computers and media players connect directly on standard HDMI cabling. Outputs cover 12G-SDI PGM and AUX, a 3G-SDI down-converted PGM, HDMI 2.0 PGM, DisplayPort multi-view and UVC. Full-link processing supports 3840x2160p at 60/59.94/50/30/29.97/25, 1080p at the same frame rates and 1080i at 60/50 for e-commerce livestreaming, education and remote teaching, show-style streaming and talent show production.
Key Features
- Four HDMI 2.0 inputs for direct connection of HDMI cameras, computers and media sources
- Full-link 4K@60Hz processing for 3840x2160p, plus 1080p and 1080i multi-frame-rate support
- Built-in UVC output, recognised as a webcam by a computer with no capture card required
- Streaming codec supporting RTMP, RTMPS, SRT, RTSP, UDP and NDI with 1-channel pull and 4-channel push
- One-touch landscape 16:9 to portrait 9:16 switching, one-click snapshot and emergency black or colour bars
- Configurable 1-4 window PIP and multi-view templates, web browser remote control and customisable interface themes
Key Selling Points
HDMI 2.0 input configurationFour HDMI 2.0 inputs let consumer and prosumer cameras, laptops and playback devices feed the switcher without SDI conversion, useful for studio, classroom and e-commerce setups.
Full-range output set on one unit12G-SDI PGM and AUX, 3G-SDI down-converted PGM, HDMI 2.0 PGM, DisplayPort multi-view and UVC outputs cover broadcast, monitoring and computer-based workflows at the same time.
Embedded FPGA hardware platformFull-hardware design with a self-developed domestic R&D architecture delivers ultra-high stability, keeping the switcher running through long live events without a PC.
Standard UVC output, plug and playThe unit is recognised as a webcam by a computer, so mainstream streaming and recording software works without drivers or an external USB capture card.
4-channel push with balanced audio controlStream to four platforms simultaneously while pulling one remote stream, and manage audio with 6.5mm balanced ports and rotary-knob gain per input channel.
Technical Specifications
| Model | TCHD-840 Ultra (HDMI 2.0 input configuration) |
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| Architecture | Full-hardware live production switcher, embedded FPGA, independent self-developed R&D design |
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| Video Inputs | 4xHDMI 2.0 |
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| Audio Input | 1x6.5mm balanced audio input |
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| Video Outputs | 2x12G-SDI PGM, 2x12G-SDI AUX, 1x3G-SDI PGM down-converted, 1xHDMI 2.0 PGM, 1xDisplayPort multi-view, 1xUVC |
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| Audio Output | 1x6.5mm balanced audio output |
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| Other Interfaces | 1xRS422, 2xRJ45, 1xTALLY port, 1xOTG port, 1xUSB 3.0 |
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| Supported Resolutions | 3840x2160p 60/59.94/50/30/29.97/25; 1080p 60/59.94/50/30/29.97/25; 1080i 60/50 |
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| Display and Storage | Industrial-grade flip cover, main display 15.6 inch or larger, built-in M.2 drive bay |
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| Streaming Protocols | RTMP, RTMPS, SRT, RTSP, UDP, NDI |
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| Streaming Capability | 1-channel stream pulling (receiving), 4-channel simultaneous streaming (pushing) |
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| Housing | Aluminium alloy |
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Models and Options
The TCHD-840 Ultra is offered with either four HDMI 2.0 inputs or four 12G-SDI inputs (3G-SDI compatible), selected at order stage. Both configurations share the same output set, streaming engine and control surface. PIP and multi-view layouts support single, dual, triple and quad windows, and landscape 16:9 or portrait 9:16 production modes are switched with one touch.
Materials and Structure
The chassis uses an aluminium alloy housing with an industrial-grade flip cover that protects the operating surface during transport and on location. A main display of 15.6 inches or larger carries the multi-view and menu interface, and an M.2 drive bay is built in. Processing runs on the embedded FPGA platform, with physical rotary knobs on the panel for per-channel audio gain control.
Applications
- E-commerce livestreaming with HDMI camera kits and portrait 9:16 mode
- Education, remote teaching and training sessions
- Business presentations and corporate conference streaming
- Show-style streaming and talent show streaming
- Multicamera live streaming to the internet or broadcast, including livestream eSport events
Customization
- Title templates with rich overlay and graphics features; overlay content can be set to clocks, text, images or rolling captions
- PIP templates configurable through the web interface and the touchscreen PIP module
- Multi-view templates with custom size, position and background image
- Customisable themes for the multi-view operation interface, including module colours, menu colours and system fonts
- Remote control via web browser for channel switching, title control and other functions
FAQ
Can I connect HDMI cameras and laptops directly?
Yes. The four HDMI 2.0 inputs accept HDMI cameras, computers and media players without an SDI converter.
Does it need an external USB capture card?
No. The built-in UVC output is recognised by a computer as a webcam, so any webcam-capable software works without drivers or a capture card.
Which resolutions and frame rates are supported?
3840x2160p at 60/59.94/50/30/29.97/25, 1080p at 60/59.94/50/30/29.97/25, and 1080i at 60/50.
How many platforms can it stream to at the same time?
The switcher supports 1-channel stream pulling and 4-channel simultaneous pushing, with template-based management of pull-stream and live-stream URLs.
Which streaming protocols are available?
RTMP, RTMPS, SRT, RTSP, UDP and NDI.
Can I switch between horizontal and vertical production?
Yes. Landscape 16:9 and portrait 9:16 modes switch with one touch, and a one-click snapshot function is also provided.
Inquiry Information
Request Pricing and Configuration Advice
TCHD Digital Video Technology Development (Beijing) Ltd
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
- live-stream-switcher-tchd-840-ultra-hdmi2-control-panel.png | Alt: TCHD-840 Ultra HDMI 2.0 live stream switcher control panel and display
- live-stream-switcher-tchd-840-ultra-output-interfaces.png | Alt: TCHD-840 Ultra live stream switcher output and expansion interfaces
- live-stream-switcher-tchd-840-ultra-multiview-interface.png | Alt: Multi-view operation interface of the TCHD-840 Ultra switcher
