Thunderbolt 3 M.2 NVMe SSD Enclosures

[mogens]

I've seen that anomaly using Amorphous with quite a few drives, including the SN810. Weirdly enough, encrypting the drives brings the write speed upto ~2500mb/s.



35.25 is an older firmware from May 2023. But that's not really the version you should be paying attention to as any manufacturer can edit the .ini to reflect their own custom versioning.

Out of those two JEYI files, 1005 is the most recent one. If you unzip the the those .exe files contained within, you'll get a folder that has a bunch of files including the .bin file, which is the actual firmware.

New:

View attachment 2319013

Old, but a bit more recent than as what shows up as "35.25" in that Mac system info screenshot:

View attachment 2319016

Thanks!
I tried to update using my windows 10 laptop. I used the 1005 file and everything went smooth using an USB port.
BTW, there's no need to format the ssd to windows, the update program detects the enclosure anyway.
Now the the firmware says 34.12 on my iMac?
You're right about the encryption, now write speed is normal, but read speed is lower?
Here's what the update app on windows shows when I connect after updating, I hope it looks right?:

 

[Pressure]

Bought the Maiwo K1695 USB4 NVMe enclosure (ASM2464) and hitting these speeds with the Samsung 990 Pro.

 

[AAPLGeek]

I'm curious, how did you determine this? I'd love to learn how to do this in the future for similar or other devices.

I have access to ASMedia's internal documentation. 35.25 is the oldest shipping firmware and it's on majority of enclosures shipped before September 2023.

Thanks!
I tried to update using my windows 10 laptop. I used the 1005 file and everything went smooth using an USB port.
BTW, there's no need to format the ssd to windows, the update program detects the enclosure anyway.
Now the the firmware says 34.12 on my iMac?
You're right about the encryption, now write speed is normal, but read speed is lower?
Here's what the update app on windows shows when I connect after updating, I hope it looks right?:
View attachment 2319049

You don't even need to have SSD inside the enclosure to update the firmware. It's actually advisable not to have it inside during the firmware update.

The firmware says 34.12 because JEYI has weirdly chosen that version number in their config .ini file. Mine says 3A.05 and it came straight from ASMedia.

Your screenshot looks ok.

Not sure about the read speed being lower after encryption. It's likely some incompatibility between the drive controller and Amorphous. Good to check the real world transfer speeds through activity monitor instead.

 

[JeanMi67]

Hello, I received my box JEYI TB-2464 Pro, but I don't have the expected speed. I installed a Samsung 990 pro 4TB and I connected it to a MacBook Pro M1 Pro as well as a Mac mini M2 and I barely exceeded 1500MB/s.
If anyone could help me, thank you

 

[mogens]

Hello, I received my box JEYI TB-2464 Pro, but I don't have the expected speed. I installed a Samsung 990 pro 4TB and I connected it to a MacBook Pro M1 Pro as well as a Mac mini M2 and I barely exceeded 1500MB/s.
If anyone could help me, thank you

It could be the firmware, but I’m not sure, you need a PC to update the firmware. (vers. 1005)

 

[masotime]

Hello, I received my box JEYI TB-2464 Pro, but I don't have the expected speed. I installed a Samsung 990 pro 4TB and I connected it to a MacBook Pro M1 Pro as well as a Mac mini M2 and I barely exceeded 1500MB/s.
If anyone could help me, thank you

It could also be an issue with the cable (some are not rated for 40Gbps), or if you're connecting it to a dock it might not work as one might expect. Is this a direct connection to one of the ports on the Mac(s)?

 

[JeanMi67]

yes direct connection to the mac and test with two cables

 

[mogens]

You have the old firmware 35.25, I think you need to update.
"

Notes: Ver.1005 solve the problem - M1 MACBOOK PRO 2021 Thunderbolt port cannot recognized.​

 

[Earl Urley]

Just got the JEYI 2464-Fan unit, it comes with a JEYI branded Thunderbolt 4 cable, a screwdriver, one spare screw, a leather strap, eight small square thermal pads, a bunch of media labels, and a small slip of paper which I take to be a super brief set of instructions.

The fan is almost whisper quiet, haven't put an SSD in yet, but soon.. it comes on as soon as the power light does.

Think I'm just going to go ahead and apply the 10_05 firmware and start benchmarking after it's applied.

Two screws hold the enclosure closed; its pretty simply made, very much like the Hyper.. interesting that they seem to have made sure the only components facing the user are a few resistors, the ASM2464 and the fan is totally out of sight (probably on the other side of the component board.)

The manual is literally four sentences in Simplified Chinese on a paper slip, no drawings or diagrams or anything, once again it's 'figure it out yourself' packaging.

Will post more as time permits..

 

[AAPLGeek]

Hello, I received my box JEYI TB-2464 Pro, but I don't have the expected speed. I installed a Samsung 990 pro 4TB and I connected it to a MacBook Pro M1 Pro as well as a Mac mini M2 and I barely exceeded 1500MB/s.
If anyone could help me, thank you

What's the link width under system report>NVMexpress? Seems like x2 from that benchmark.
I didn't have any speed issues on 35.25, but it could be a specific 990 pro 4TB incompatibility with the older firmware. Good to update it.
Also make sure you're at least on latest version of Ventura, as anything before macOS 13.4 is reported to have speed anomalies.

 

[Earl Urley]

Hmmm, the updater doesn't 'see' the enclosure, maybe I'll put in a SSD?

Or maybe it's because the updater says it's for the 2464 and 2464-PRO, not 2464-FAN?

 

[mogens]

i don’t think the updater works on the fan version?
Else try this:
make sure it is recognized (the green light is on) or the updater will not be able to find it.
unplug and plug in again if it doesn't light up.
it is not necessary to have an ssd in it.

 

[Pressure]

The Maiwo K1695 NVMe enclosure I got is also based on ASM2464 and the firmware version is reported as 35.8.

 

[JeanMi67]

hello, I just did the update and it didn't change anything, the speed is still at 1500MB/s,
with a samsung 990 pro ssd, a samsung 980 pro and WD SN770.
I don't know what I can do!

 

[JeanMi67]

Support JEYI :

« The ASM2464 master chip has some compatibility problem with Apple M1 chips. Not all M1 chips, only some, it might be diffirence of the manufacturer or the manufacture date. Mine Mac mini M1 is high performance with the chips, which comes to 3000mb, but my colleague only comes to 400mb, the same enclosure, same cable and same SSD.

We are finding the problem right now, according to our test, the Thunderbolts port on some of the M1 devices only runs 2 of PCIe X4 lanes, maybe only 1 lane. So the speed is limited, we are develope new firmware to solve this problem with the ASM company.

The firmware will be update ASAP we will release it on our website. »

 

[mogens]

Good to know, but how is it possible to check before buying?

 

[JeanMi67]

Re JEYI Support :

" By consulting with our engineers, the ASM2464 chip is indeed incompatible with the Thunderbolt chip in some Mac devices. We are working on upgrading the firmware to resolve this compatibility issue. ASM2464 is more suitable for mac products after 2022. Because the previous apple device chip is JHL7XXX, ASM2464 is more suitable for JHL8XXX thunderbolt chip "



I tried with a MacBook Pro M1 Pro and mac mini M2 from 2023 and it's exactly the same, i don't exceed 1500mo/s

 

[masotime]

hello, I just did the update and it didn't change anything, the speed is still at 1500MB/s,
with a samsung 990 pro ssd, a samsung 980 pro and WD SN770.
I don't know what I can do!

I took a look at your screenshots, what stands out to me is the x1 link speed:

By contrast, this is how mine looks:

I'm not sure what could be causing that in your case though.

 

[masotime]

i don’t think the updater works on the fan version?
Else try this:
make sure it is recognized (the green light is on) or the updater will not be able to find it.
unplug and plug in again if it doesn't light up.
it is not necessary to have an ssd in it.

I was able to update my fan version. This was important for me as I recently got an SN850X 4TB that didn't work with the JEYI fan version of the drive - none of my Macs could detect it (2019 Intel iMac or M2 MacBook Air). I was puzzled since some posts above there was an SN850X 2TB that worked.

Fortunately I have a Windows gaming machine, but using the USB-C to USB-C connection wouldn't work for me. Eventually what I did was use a USB-A to USB-C cable - otherwise the firmware updater program would not detect the drive. 🙄

After the firmware update, I was able to get the SN850X 4TB to be detected.

I was able to diagnose it was a firmware issue because:

* The SN850X 4TB worked on the ZikeDrive I also own
* It would also work if I used a slower cable on the JEYI - a USB3 cable that limited the speed to about 1MB/sec...

 

[masotime]

SN850X using JEYI "fan version" with updated firmware (10_05 or the October 2023 one)

I also just noticed... it says Link Width x4 on my M2 MacBook Air... but x2 on my 2019 Intel iMac... 🤔

 

[mogens]

It looks fine. I see you formatted it to exfat. Have you tried apsf? I get the write speed in AmorphousDiskMark completely wrong (far too low: 1000 mb/s).
I have the feeling that AmorphousDiskMark has a problem with e.g. SN850x and other SSDs from WD.
I get this with a SN850x 4tb (ssd little over half full):

 

[masotime]

Yeah I haven't tried APFS yet - will have to give it a go later.

 

[JeanMi67]

I tried with a MacBook Pro M1 Pro, a MacBook Pro M1, and two different Mac mini M2, 3 SSD drives, Samsung 980 Pro, 990 Pro, WD Black SN770 as well as two USB4/Thunderbolt cables.
All results are identical between 1500MB/s and 1600MB/s

 

[masotime]

I tried with a MacBook Pro M1 Pro, a MacBook Pro M1, and two different Mac mini M2, 3 SSD drives, Samsung 980 Pro, 990 Pro, WD Black SN770 as well as two USB4/Thunderbolt cables.
All results are identical between 1500MB/s and 1600MB/s

Could be the enclosure is faulty then… 😔 - I think without at least x2 link speed it’s going to be maxed out at 1.5GBps

 

[AAPLGeek]

I also just noticed... it says Link Width x4 on my M2 MacBook Air... but x2 on my 2019 Intel iMac... 🤔

Same behavior with my M1 MBA and 2020 Intel iMac. Seems to be an issue with the latest firmware as 35.25 had x4 link width on both my machines.

I tried with a MacBook Pro M1 Pro, a MacBook Pro M1, and two different Mac mini M2, 3 SSD drives, Samsung 980 Pro, 990 Pro, WD Black SN770 as well as two USB4/Thunderbolt cables.
All results are identical between 1500MB/s and 1600MB/s

If you've tried all that, it's more than likely the enclosure itself.