Ultrastudio PCI Kit Speed

Getting started with a Blackmagic product? Ask questions here about setup and installation.
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  • Joined: Sun Mar 01, 2020 1:10 pm
  • Real Name: Jonathan Gould

Ultrastudio PCI Kit Speed

PostSat Apr 10, 2021 12:38 pm

Trying to determine if I actually need the PCI kit. The website says “when you need speeds faster than Thunderbolt” but it appears the card is a 4x PCI-e 3.0 connector. That would be 4x8Gb = 32Gb. Thunderbolt 3 is 40Gb, and actually has a “pci mode” which provides a 4 lane 8Gb bus. So it would appear they would be the same speed?

The reason I ask is we plan to put our Mac Pro in the studio machine room (rackmount) and a 20m fiber PCI-e four lane cable (iPass) is considerably more expensive than a Thunderbolt optical cable.

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