I’m using a Lacie SATA in RAID 0 (with 5 drives) through the an Express Card to Sata card.
I can capture with no problem if I disconnect the rs422 cable so I don’t think it’s the computers speed causing the problem.
Anyway it is not possible to work in a PRO edit suite with the IoHD as the audio is not in sync when using SDI output in ProRes SD…
https://www.prog-pics.com