This guide goes over how to change Elgato Facecam or Facecam Pro USB transfer mode between Bulk and Isochronous.
USB 3.0 includes two different types of transferring data, known as USB transfer modes. The two available modes are bulk and isochronous.
The following devices can have their transfer mode changed:
- Cam Link (10GAC9901)
- Cam Link 4K (Model 10GAM9901)
- Facecam (Non-MK2)
- Facecam Pro
The USB transfer mode can be manually selected to help resolve stuttering or freezing video issues.
By default, Facecam is set to Automatic. When Automatic, Facecam will select the transfer mode based on these criteria:
- Windows PC - Bulk
- M1 Mac - Isochronous
- Intel Mac - Bulk
- Microsoft Surface - Isochronous.
How to Switch USB Transfer Modes
The steps below apply to both Elgato Facecam and Elgato Facecam Pro.
1) Download and install Camera Hub 1.2.2 or later
2) Update Facecam to Firmware 4.06 or later.
Facecam Pro supports changing transfer mode with release firmware; no particular version is required.
3) Open Camera Hub
4) In Windows, press and hold the CTRL key on your keyboard, and click on the Facecam settings. If you are using a Mac, press and hold the Command button, and click on the Facecam settings.
5) From the USB transfer mode dropdown, select either bulk or isochronous.
6) Facecam will momentarily disconnect while the transfer mode is changed.
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