So I picked up a HYPER HD5001GL-90, advertised and labeled as USB4 NVMe SSD Enclosure.
I don't think it has the ASMedia 2464...
No idea what that chip is but it sure isn't an ASM2464.
I dropped in a Hynix P31 Gold 2 TB and got the following:
This is rather disappointing as the Hynix is supposed to be capable of 3500 MB/sec reads and 3200 MB/sec writes.
I'd stay away from the HYPER as it seems they just swapped out the ASM2464 and instead swapped in something that only gives TB3 speeds..
The only saving grace is that it doesn't seem to get too hot, but that's because I leave the silicon wrapper it comes with off. With it on I'm sure it would get mega hot.
Makes me wonder if that's why they took the ASM2464 out..
So I ordered the JEYI enclosure but with the fan option, will test that when it arrives..
I will likely sell off the HYPER assuming whoever buys it doesn't care that it doesn't have the ASM2464.
Hooked it up to a 2020 rMBP and got nearly exactly the same results, so it looks like HYPER just punted and shoved in a TB3 chip and hoped no one noticed.. System Information does identify it as a USB4 device, though.. maybe the cable is crap? Will order a Cable Matters USB4 and see if that helps.
Additionally, it's only connecting at 8 GT/s and link width x4, which means its definitely not an ASM2464.
Hook it up to an Intel rMBP, it will say it is Thunderbolt 3. Hook it up to an M1/2/3 and it will report that it is a USB4 device.