The Marshall VAC-23SHUC captures either an SDI or HDMI source through USB-C for a computer workflow. Active loop outputs preserve local video access while the host receives capture. Input and USB-speed limits differ, making it important to specify the desired source format and computer connection together.
Marshall VAC-23SHUC Features
- SDI or HDMI source selection. 3G/HD-SDI and HDMI inputs accommodate professional cameras and HDMI devices. One capture interface can serve either source type without requiring a separate converter for each connection standard.
- HD capture from SDI. The SDI input supports formats up to 1080p50/60. This is an HD input path even though the unit also supports higher-resolution HDMI sources.
- Higher-resolution HDMI input. HDMI accepts supported video up to 4096 × 2160 at 30 fps. With an appropriate source and USB 3.0 host, USB capture can reach 3840 × 2160 at 30 fps.
- Active loop outputs. SDI and HDMI loop-through connections preserve video access for local or downstream equipment. A display or other receiver can remain connected alongside the computer capture path.
- USB audio and analog input. USB audio uses 48 kHz sampling, and a 3.5 mm stereo input provides analog audio access. Analog insertion into HDMI requires an existing audio track in the source signal.
- Host-powered USB operation. The converter is powered by the computer's USB connection and supports USB 3.0 and 2.0. Capture capability depends on the actual USB speed, not simply the USB-C connector shape.
Specifications
| Manufacturer | Marshall Electronics |
|---|---|
| Model | VAC-23SHUC |
| Video inputs | 3G/HD-SDI and HDMI |
| Computer connection | USB-C |
| USB support | USB 3.0 and USB 2.0 |
| SDI input limit | Up to 1080p50/60 |
| HDMI input limit | Up to 4096 × 2160 at 30 fps |
| Loop outputs | Active SDI and HDMI loop-through |
| USB resolution | Up to UHD 3840 × 2160 at 30 fps with USB 3.0 and a suitable source |
| USB audio | 48 kHz sampling |
| Audio input | 3.5 mm stereo input |
| Power | Powered by the host USB connection |
Technical Questions
Which video inputs are available?
3G/HD-SDI and HDMI.
What is specified for computer connection?
USB-C.
What is specified for usb support?
USB 3.0 and USB 2.0.
What is specified for sdi input limit?
Up to 1080p50/60.
What is specified for hdmi input limit?
Up to 4096 × 2160 at 30 fps.
Which loop-through outputs are provided?
Active SDI and HDMI loop-through.
What is specified for usb resolution?
Up to UHD 3840 × 2160 at 30 fps with USB 3.0 and a suitable source.
What is specified for usb audio?
48 kHz sampling.
Buying and Installation Questions
What is the VAC-23SHUC used for?
It is intended for capturing a compatible SDI or HDMI source on a computer.
What should I check before ordering?
SDI input is limited to HD formats. Analog audio insertion into HDMI requires an existing audio track.
Which configuration does this SKU identify?
Marshall VAC-23SHUC SDI/HDMI-to-USB-C Capture Converter. Match this exact model identifier when selecting accessories or replacement equipment.
Where can I check installation details?
Use the manufacturer documentation linked in the Manuals tab for wiring, setup and interface-specific limits.
