Thunderbolt 3/4 HDMI Capture Card4CH Thunderbolt3 HDMI Video Capture Box
This four-channel HDMI Thunderbolt 3 capture box supports up to 1080p60 video and embedded-audio capture across four inputs. Its 40 Gb/s Thunderbolt 3 interface supports daisy-chain expansion, while YUY2 4:2:2, XRGB, and NV12 output, DP expansion, hardware scaling, and deinterlacing make it ideal for multi-camera streaming, conference recording, medical imaging, industrial vision, and professional system integration.
Thunderbolt3/USB4.0 Video Capture Box
PROFESSIONAL 4K VIDEO CAPTURE
Four-Channel HDMI Thunderbolt 3 External Capture Box
A four-channel external capture solution for multi-camera streaming, conference recording, education, medical imaging, and industrial vision. It provides four HDMI inputs with capture up to 1080p60 and four channels of HDMI embedded audio. Dual Thunderbolt 3 ports deliver a 40 Gb/s high-speed link with daisy-chain expansion, while a DP output extends display connectivity. YUY2 4:2:2, XRGB, and NV12 output, automatic format detection, hardware scaling, and deinterlacing support professional software and custom integration.
4 × HDMI InputUp to 1080p60Thunderbolt 3 40 Gb/sDaisy ChainYUY2 / XRGB / NV124-Channel Audio
CORE ADVANTAGES
Four HD audio/video channels over one Thunderbolt 3 link
Four HDMI InputsConnect four HDMI 1.4 sources and capture supported video formats up to 1080p60.
High-Speed Thunderbolt 3Two Thunderbolt 3 ports provide up to 40 Gb/s link bandwidth and daisy-chain connectivity.
Multiple Video FormatsYUY2 4:2:2, XRGB, and NV12 support flexible capture, preview, encoding, and image-processing workflows.
Four Embedded-Audio ChannelsCapture HDMI embedded audio from four inputs at 48 kHz / 16-bit.
On-Board Video ProcessingAutomatic format detection, hardware scaling, and deinterlacing reduce host processing workload.
Standard APIs and SDKDirectShow, DirectSound, and HWS SDK support streaming, recording, and custom applications.
HIGH-SPEED EXTERNAL CAPTURE
Professional four-channel 1080p60 Thunderbolt 3 capture platform
4 × HDMI IN · 2 × Thunderbolt 3 · 1 × DP OUT
The compact metal enclosure integrates four HDMI inputs, with power, DP expansion, and dual Thunderbolt 3 ports on the opposite side. Its high-speed external architecture is ideal for centralized multi-source ingest, portable deployment, and systems where internal PCIe slots are limited.
4 × HDMI 1.4 inputs, up to 1080p60
Dual Thunderbolt 3 ports with 40 Gb/s link and daisy-chain support
1 × DP expansion output
Four HDMI embedded-audio channels at 48 kHz / 16-bit
PROFESSIONAL CAPTURE VALUE
Multi-channel capture, centralized cabling, and flexible expansion
A high-speed Thunderbolt 3 connection brings multiple HDMI sources into one capture host for multi-camera production, equipment monitoring, and professional vision systems. DP expansion and daisy-chain support help extend displays and Thunderbolt devices in interface-constrained environments.
Multi-Camera ProductionConnect cameras, computers, and other HDMI sources for switching, streaming, and recording.
Industrial and Medical IntegrationYUY2, XRGB, and NV12 output plus the SDK support image analysis, medical imaging, and custom software.
Desktop and Mobile DeploymentThe external metal enclosure avoids consuming a PCIe slot and suits workstations or Thunderbolt notebooks.
CONNECTION AND CAPTURE WORKFLOW
From four HDMI sources to the capture application
01 · INPUTConnect HDMI sourcesConnect up to four cameras, computers, or other HDMI devices.
02 · HOSTConnect Thunderbolt 3Use a suitable Thunderbolt 3 cable and configure the daisy chain when required.
03 · EXPANSIONConnect a DP displayAttach a display to the DP output when extended display connectivity is needed.
04 · SOFTWARESelect channels and formatsChoose the channels, resolution, and audio in capture, streaming, or SDK software.
CORE SPECIFICATIONS
Technical specifications
| Product Type | Four-Channel HDMI Thunderbolt 3 External Capture Box |
| Host Interface | 2 × Thunderbolt 3, up to 40 Gb/s, daisy-chain support |
| Video Inputs | 4 × HDMI inputs |
| HDMI Standard | HDMI 1.4 |
| Input Resolution | Up to 1080p60 and supported lower resolutions |
| Capture Resolution | Up to 1080p60 and supported lower resolutions |
| Video Output Formats | YUY2 4:2:2, XRGB, NV12 |
| Video API | DirectShow |
| Audio Capture | 4 channels of HDMI embedded audio |
| Audio Format | 48 kHz, 16-bit |
| Audio API | DirectSound |
| Expansion Output | 1 × DP expansion output |
| Video Processing | Automatic format detection, output scaling, and hardware deinterlacing |
| HDCP | HDCP handshake support; 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 |
| Development Support | HWS SDK and standard DirectShow development interface |
| Power / Dimensions | 20 V / 3.25 A (65 W power adapter); 160 × 96 × 39 mm |
| Operating / Storage | Operating: 0–85°C; storage: -20–70°C; storage humidity: 5%–90% |
APPLICATIONS
For multi-channel HD capture and professional integration
Multi-Camera StreamingConference RecordingRemote EducationMedical ImagingIndustrial VisionVideo MonitoringContent ProductionOEM Integration
Specification note: Actual per-channel resolution, frame rate, and concurrent performance depend on the source, Thunderbolt host, cable, driver, and application settings. The 65 W value is the supplied power-adapter rating, not the continuous device power consumption. HDCP-protected content may be used only with appropriate authorization and in compliance with content-protection requirements.
