Maximum throughput for external USB4 SSD?

[Pbwj]

I'm currently running a Satechi USB 4 SSD enclosure with a Lexar NM790 SSD. I get ~3000 MB/s Read/Write on my Mac 1 Ultra. However, I'm running low on space and was wondering how many more of these I could add on until I start to see speed deteriorating. From my understanding each TB4 port is 40 GB/s so I could hypothetically run four of these enclosures without having it bottleneck my throughput speeds on my Mac Studio?

 

[Bigwaff]

From my understanding each TB4 port is 40 GB/s so I could hypothetically run four of these enclosures without having it bottleneck my throughput speeds on my Mac Studio?

That’s correct. Apple Silicon makes have a TB controller per TB port/bus, although 40 Gb/s (not GB) is theoretical max throughput, in real world is typically 32-ish Gb/s. Buy good, short cables.

 

[PaulD-UK]

There are earlier MR threads about problems running too many buss powered SSDs on Mac Studios, if the drives try to draw too much power.
So the theoretical 4x40Gb/s or 6x40Gb/s for an Ultra Studio may only be available with some (2?) self-powered enclosures.