USB 3.0 in Snow Leopard

[bunnspecial]

I'm using a Mac Pro 5,1, and have a USB 3.0 card that works perfectly at USB 3.0 speeds in High Sierra or whatever other "new" OS I throw at it.

This particular card uses the same chipset as the "trash can"(6,1) Mac Pro, so is recognized and works natively in OSs newer than 10.9ish.

For a couple of reasons, I MUST be able to natively boot this computer in SL(please don't argue with me on this-one of my main uses for it requires direct access to Firewire with a PPC native program, something that I can't virtualize as FW pass-through doesn't work in any VM program I'm aware of).

In any case, does there exist a way to enable USB 3.0 support in Snow Leopard? I found references online to an older LaCie tool that worked with their specific Expresscard they sold, but that's all I've found. If anyone can suggest a utility that can do this, I'd be appreciative of it. This something that's in the "nice to have" category-not the "have to have"-so it's no big deal if not.

 

[Fishrrman]

"In any case, does there exist a way to enable USB 3.0 support in Snow Leopard?"

Without the appropriate driver or kext, I think you're "out of luck".
Does it run in USB 2.0?
That may be "all you can get" out of it with Snow Leopard.

 

[mrkapqa]

this card here functions with snow leopard but only until mavericks

CalDigit FASTA-6GU3 : 2-port USB 3.0 & 2-port eSATA... at MacSales.com

CalDigit FASTA-6GU3 FASTA-6GU3: 2 port USB 3.0 & 2 Port eSATA host adapter for Mac Pro or Windows PC with PCI express slot. Adds two eSATA 6Gb/s ports and two USB 3.0 ports. 1 Year CalDigit Warranty.

eshop.macsales.com

[automerge]1593109879[/automerge]
or this one
CalDigit USB 3.0 Card
problem is these cards are only supported til mavericks so it would be nice if there be a usb3 card that goes from Snow Leopard all the way up but it seems not

 

[Wowfunhappy]

problem is these cards are only supported til mavericks so it would be nice if there be a usb3 card that goes from Snow Leopard all the way up but it seems not

I wonder if it's actually incompatible with 10.10+ or if they just say that because they haven't tested it and don't want to support it.

I don't remember the name now but there's another PCIe USB 3.0 card that claims to be incompatible with 10.10+ but actually works fine. I've personally used it on High Sierra.

 

[gimchess]

I got a usb 3 card for my machine that works with snow leopard. (Macbook pro 5,1). I got the driver from "mulibeast".


Not getting usb 3 speeds, but it's about 50% faster than my usb 2 ports.

https://www.amazon.com/gp/product/B07THQLS6W/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1