Quad HDMI Recorder: Shared or Separate PCIe Lanes?

I was wondering if the Quad HDMI Recorder uses separate or shared PCIe lanes for each input. My concern is regarding if I capture at 10-bit RGB, at UHD1 or DCI:4K, at 60fps, will I get frame drops, or will it use bandwidth from 3 or more lanes? Assume I have a HEDT/Workstation (AMD or Intel super fast with lots of optimizations) with PLENTY of PCIe Gen3 (or comparable) lanes to dedicate 8 PCIe lanes that the card uses.

Thanks