Magewell USB Capture HDMI Plus
HDMI to USB 3.0 with loop-through output and discrete audio — capture while keeping your display live.
- HDMI loop-through output — your source display stays live while the signal is simultaneously captured to USB, with zero signal interruption
- Discrete 3.5mm audio input — embed external microphone, mixer or audio interface audio directly into the captured stream
- Capture up to 1920×1080 at 60fps from any HDMI source via USB 3.0 — driverless UVC, no software installation required
- Bus powered from USB — no external power supply, completely portable for field, conference room and studio use
- Instantly compatible with Zoom, Teams, OBS, vMix, Wirecast, Adobe Premiere and 300+ video applications
- HDMI monitoring output means operators never lose sight of the source — critical in live production and conference room environments
Capture and Monitor Simultaneously
The Magewell USB Capture HDMI Plus adds two critical capabilities to the standard USB capture workflow — a live HDMI loop-through output and a discrete audio input. These two additions transform it from a simple capture device into a professional monitoring and capture solution.
The HDMI loop-through output passes the incoming HDMI signal directly to a display, projector or downstream equipment while simultaneously sending the video to your computer via USB. The source display is never interrupted — the presenter's slides remain on the projector, the camera output remains on the confidence monitor, the patient display continues functioning during the medical procedure. Capture happens invisibly alongside normal operation.
This is the principal reason the USB Capture HDMI Plus is specified over the standard Gen 2 in any environment where a display must remain active during capture.
Discrete Audio for Professional Sources
The 3.5mm audio input allows an external audio source — a microphone, mixer, soundcard output or audio interface — to be embedded into the captured stream independently of the HDMI audio. This is valuable when the HDMI source audio is insufficient (a camera with a built-in mic) or when you need a separate high-quality audio feed embedded into the capture.
In conference room applications, this means the room's boundary microphone audio can be captured alongside the camera feed. In broadcast workflows, the line-level output of a mixing desk can be embedded. In education, a lavalier microphone on the presenter provides cleaner audio than the HDMI source alone.
For SDI signals with loop-through, see the USB Capture SDI Plus. For 4K HDMI capture, see the USB Capture HDMI 4K Plus and HDMI 4K Pro.
Compatible Software Guide ↗| Video Input | |
| Input Connector | 1× HDMI Type-A (HDMI 1.4b) |
| Max Input Resolution | 1920×1080 @ 60fps |
| Video Loop-Through Output | |
| Loop-Through Connector | 1× HDMI Type-A |
| Loop-Through Signal | Bitstream pass-through — exact copy of input signal |
| Display Impact | None — display remains live throughout capture |
| Audio | |
| Audio Input 1 | Embedded HDMI audio (2-channel PCM) |
| Audio Input 2 | 3.5mm TRS — discrete external audio input |
| Audio Capture Standard | UAC (USB Audio Class) — driverless |
| Video Capture Output | |
| USB Interface | USB 3.0 SuperSpeed (5Gbps) |
| Capture Standard | UVC (USB Video Class) — driverless |
| Uncompressed Formats | YUY2, UYVY, RGB24, NV12, I420 |
| Power & Connectivity | |
| Power Source | Bus powered via USB |
| Max Power Consumption | < 4.5W |
| Compatibility | |
| Operating Systems | Windows 7/8/10/11, macOS 10.9+, Linux (kernel 4.2+), ChromeOS |
| Video Conferencing | Zoom, Microsoft Teams, Google Meet, Cisco Webex, GoTo, Skype |
| Video Software | OBS Studio, vMix, Wirecast, Adobe Premiere, DaVinci Resolve and 300+ others |
| Product Information | |
| SKU | 32040 |
| Warranty | 3 years |
| Price (ex-VAT) | £287.00 |
| Availability | In stock — UK warehouse |
Specifications sourced from Magewell product documentation. Contact us to confirm suitability for your specific application.
The HDMI loop-through and discrete audio input of the USB Capture HDMI Plus open applications that require continuous display operation alongside professional-quality capture.
Corporate Presentation Rooms
Capture presentation laptop HDMI while keeping the room projector live. The presenter sees their slides on the projector normally; the signal is simultaneously recorded and streamed without any interruption or signal splitting.
Houses of Worship — Live Monitoring
Show the main service IMAG output on sanctuary screens while capturing for live streaming to remote congregants. The display and stream run simultaneously without requiring external signal splitters or additional equipment.
Operating Theatre Display Continuity
Surgical camera displays in operating theatres must not be interrupted. The loop-through output maintains the surgeon's display while the signal is independently captured for medical records, training observation and telemedicine consultation.
Hybrid Lecture Rooms
Display lecture content on the classroom screen while capturing for Panopto, Kaltura or Echo360 lecture archive simultaneously. The loop-through avoids any disruption to in-room students while ensuring full online quality.
Conference & Panel Events
Capture the main display or confidence monitor feed with separate boundary microphone audio embedded via the discrete 3.5mm input — providing a complete conference capture solution in a single compact device.
Live Events — Operator Monitoring
Event producers and vision mixers can capture SDI or HDMI feeds while keeping monitoring displays active. The loop-through eliminates the need for signal splitters in compact production setups.
News Desk & Studio Production
Capture camera or replay feeds to a streaming PC while maintaining the feed to the studio monitor. Essential in studio environments where camera operators and directors must retain live visual feedback throughout a broadcast.
Scientific & Research Recording
Research instruments with HDMI outputs can be captured for lab notebooks and data documentation while the instrument display remains fully functional for the researcher — no workflow interruption.
AV Integration — Simultaneous Outputs
Integrators specifying capture in rooms where the display must remain primary can use the loop-through to extend the signal without signal loss or additional splitter hardware. Discrete audio input adds system flexibility for room audio capture.
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