We use Magewell AIO 4K PCIe cards because we need their ultra-low latency mode.
Out of the box, they don’t work with UE but that’s the fix recommended by Magewell support:
- Disable the device in Windows Device manager
- Modify the registry:
Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ProCapture\Pro Capture AIO 4K\Board (x), Channel (y)and set EnableCC to “0”. - Enable the device.
