Hi chuco915
I am considering the same Ableconn card for my cMP. Is it working good for you?
I tried this card "
Ableconn PEX-UB160 USB 3.2 Gen2 (10 Gbps) 4-Port PCIe 3.0 Card (2X USB-C + 2X USB-A) - PCI Express Gen3 x4 Lane Host Adapter Card (Dual ASMedia ASM3142 Controllers) - 2A2C" from Amazon but returned it.
It worked great but I couldn't get the best R/W performance from each port. I was hitting about 250/300 MBs for each port via the Blackmagic Speed Test app.
sent instructions on how to get better speeds but I got lost in the instructions. I hope someone can create a video for others, like myself, that need a step by step process explanation.
I then decided to upgrade to the "Gigabyte GC-Titan Ridge 2.0 Thunderbolt 3 USB-C 3.2 flashed Mac Pro BootScreen card", you can find on
eBay, so I could attach an external GPU (RX580) via a
Razer Core X. Usings dual GPU and HW Acc (in Resolve 17 and PR20) has helped my 4K/6K Braw/ProRes workflows tremendously. I'm still in disbelief that my 2009 cMP can handle all that data in record times.
I have two TB3 ports on the TR card. One goes to eGPU and the other goes to a "
CalDigit TS3 Plus Thunderbolt 3 Dock" where I can attach my USB-A devices and one USB-C device. The speeds are about the same, for USB-A as before, 250/300 MBs with HDDs but when I attach a
Sabrent Rocket Nano 1TB USB 3.2, I get about 700/800 MBs via the USB-C port.
Hope that helps.
FYI, the TR card needs warm boots before the TB3 Dock is stable, the guy who sells the card on eBay is very helpful and is constantly updating the card so we can have stable features. Going in that direction is not suitable for those wanting to "sleep" their machine. I'm sure there is a way to do it, but I just turn off my workstation every night; at least for now.