Does anyone know if the Sabrent Rocket 4 Plus will boot on the Mac Pro 5,1 in slot 2?Sabrent Rocket 4 Plus runs fine on the internal slot in Mac Pro 6,1 with the Sintech-C adapter and Catalina OS. Showing x4 5.0 GT/s which is as fast as it gets on this machine (PCIe 2.0).
Returned the Sabrent Rocket 4 I was trying to get running in an OWC Mercury Helios Thunderbolt 2 enclosure. Never got it to run more than x4 2.5 GT/s there (PCIe 1.0). Ran fine at x4 8.0 GT/s in a Glortrends Thunderbolt 3 enclosure. So I imagine you would get that speed with PCIe 3.0.
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