Not sure what this is referring to but you can put the Zike Drive, with the ASM2464PD, into a USB3 2x2 port and get R/W 2040/2020 whether it’s a 20g or 40g rated cable it’s exactly the same. Better than the ASM2464 on USB4 even though it’s what should be expected for both.
The main ASM2464 issue I have seen is with 4x4 SSDs that aren’t the SN850x on the ASM2464. For example the Samsung 990 Pro gets R 3800 but W 500. Whereas all PCIE3 SSDs get appropriate speeds, for example SK Hynix Gold P31 = 3358/2676.
There may be another 4x4 SSD that can work properly but I have not tried it yet.
There are some settings you can play with in the “ASM2464PD USB4 Device Controller MP Tool” to effect system interface but I have not methodically documented that. BTW - the tool doesn’t run on my Framework, it immediately bluescreens and restarts system. I have to run on a different system. The bluescreen occurs even if there is no attached device.
I think I’m going to need to get a non AS Media based enclosure for testing.
Edit: So far the only thing the ASM tool does not run on is the Framework. Maybe should be a concern.