Not sure why yours would be slower. Though I use a different Acasis branded enclosure, it has the same Intel JHL6340 controller as your Orico. I'm also using the short passive TBT3 cables that came with the enclosure.

What computer are you using?

Adata also? What enclosure are you using?

I am using the ADATA XPG SX8200 Pro 1TB, lately it is acting up screen just freeze & getting BSOD when i am playing games and transfer some files in the background. While doing backup sync in itunes for my phone i try to play some dota or just open dota(idle mode) and the screen just freeze and end up with BSOD. Once BSOD happens the NVME ssd will not be detected and i can't boot to windows with error msg " Reboot and Select proper boot device ". The only way to solve this is turn off the main plug for my pc and turn on again then only the pc can normaly boot into windows. I think i should do RMA before things get worst @.@

OMG this is exactly same issue that I'm currently facing.
After 2 years using SX8200, my PC getting more frequent BSOD.
Dear sifus please help me this.

I need to replace the Adata SX8200 Pro. Unfortunately I bought the infamous swapped nand controller, and now getting frequent BSOD and sometimes bios didn't detect the drive at all.

1. My mobo is itx, and only has nvme slot at the back of it. If can get the nvme the produce less heat.

2. Gen 3.0 is fine, my mobo won't support 4.0

3. Possible bang for buck 1TB nvme (or slightly above the price range of SX8200)?

OMG this is exactly same issue that I'm currently facing.
After 2 years using SX8200, my PC getting more frequent BSOD.
Dear sifus please help me this.

I need to replace the Adata SX8200 Pro. Unfortunately I bought the infamous swapped nand controller, and now getting frequent BSOD and sometimes bios didn't detect the drive at all.

1. My mobo is itx, and only has nvme slot at the back of it. If can get the nvme the produce less heat.

2. Gen 3.0 is fine, my mobo won't support 4.0

3. Possible bang for buck 1TB nvme (or slightly above the price range of SX8200)?

I think you're right on the dot. Mac reports "Current Link Width: 0x2" Looks like only 2 lanes being used. I have another enclosure coming in with the JHL7440 controller. Will test that one later. The enclosure I tested with is a JHL6340. Might also borrow a different brand of SSD, maybe something with a Phison or Samsung controller, to test out.

Do you use any external Thunderbolt SSDs?

Mac System Info
Thunderbolt Bus 1:
  Vendor Name: Apple Inc.
  Device Name: Mac mini
  Port:
  Status: Device connected
  Link Status: 0x0
  Speed: Up to 40Gb/s x1
  Current Link Width: 0x2
  Receptacle: 1

Ash Creek:
  Vendor Name: Intel
  Device Name: Ash Creek
  Vendor ID: 0x8086
  Device ID: 0x2
  Device Revision: 0x1
  Route String: 1
  Firmware Version: 41.1
  Port (Upstream):
  Status: Device connected
  Link Status: 0x2
  Speed: Up to 40Gb/s x1
  Current Link Width: 0x2
  Link Controller Firmware Version: 0.39.0

Have u tried the same adata nvme ssd with other enclosure? Does the speed test have the same result? Perhaps you can share the speed test result of the Acasis Thunderbolt 3 40Gbps external enclosure with other ssd nvme brand if u can.

I thinking of buying this acasis tb3 enclosure (model: fa-tb34), but not sure if it worth or not. I'm currently using mbp 16 m1 pro.