Triple-HDMI + Single 3G-SDI Thunderbolt 3 External Capture Box
A four-channel mixed-interface capture solution for multi-camera streaming, conference recording, broadcast production, medical imaging, and industrial vision. It combines three HDMI inputs with one HD-SDI / 3G-SDI input, supporting up to 1080p60 video per channel and four channels of embedded audio. Dual Thunderbolt 3 ports provide a 40 Gb/s high-speed link with daisy-chain expansion, together with DP display expansion. YUY2 4:2:2, XRGB, NV12, hardware scaling, and deinterlacing support professional software and custom integration.
Consumer HDMI and professional SDI sources in one device
Four-channel mixed HDMI / SDI Thunderbolt 3 capture platform
3 × HDMI IN · 1 × 3G-SDI IN · Thunderbolt 3
The compact metal enclosure places three HDMI connectors and one locking BNC connector on a single panel for efficient mixed-signal cabling. Thunderbolt 3 host connectivity avoids consuming an internal PCIe slot and suits fixed workstations or mobile production systems.
Mixed-source connectivity, multi-channel capture, and flexible expansion
One capture box connects HDMI cameras or computers together with professional SDI equipment and carries them to the host over a high-speed Thunderbolt 3 link. Locking BNC connectivity supports long-distance or fixed cabling, while HDMI simplifies common commercial and consumer source connection.
From four mixed sources to the capture application
Technical specifications
| Product Type | Four-Channel Mixed HDMI / 3G-SDI Thunderbolt 3 External Capture Box |
| Host Interface | 2 × Thunderbolt 3, up to 40 Gb/s, daisy-chain support |
| Video Inputs | 3 × HDMI inputs; 1 × BNC / SDI input |
| Video Standards | HDMI 1.4; HD-SDI and 3G-SDI |
| Input Resolution | Up to 1080p60 per channel and supported lower resolutions |
| Capture Resolution | Up to 1080p60 per channel and supported lower resolutions |
| Video Output Formats | YUY2 4:2:2, XRGB, NV12 |
| Video API | DirectShow |
| Audio Capture | 3 channels of HDMI embedded audio; 1 channel of SDI embedded audio |
| Audio Format | 48 kHz, 16-bit |
| Audio API | DirectSound |
| Expansion Output | 1 × DP expansion output |
| Video Processing | Automatic input detection, output scaling, and hardware deinterlacing |
| HDCP | HDCP handshake support on HDMI; protected content requires appropriate authorization |
| Windows | Windows 7 / 10; Windows Server 2008 R2 |
| Linux | Linux kernel 2.6.38 and later |
| macOS | Listed as supported; verify the released driver for specific OS versions |
| Compatible Software | OBS Studio and capture, streaming, or recording software using DirectShow |
| Development Support | HWS SDK and standard DirectShow development interface |
| Power / Dimensions | External power; connector placement, enclosure size, and adapter depend on the released configuration |