ACASIS 40Gbps NVMe enclosure - FAST & COOL

[@Jasmine-Law]

Very helpful, although I think the lower write speeds you got on Mac OS is due to the file system format - APFS is most suitable for Mac OS. If using ExFAT, the write speeds on Mac are usually half of Windows. Anyway, thank you for the unboxing video, I was hesitating on whether to purchase this product before. The high temperatures when video editing always worried me it may damage my SSD, so the arrival of this product is extremely useful to me.

[@TechGuyBeau]

I was thinking it has to be exFAT yeah. I’ve been editing for a week off this device directly. It’s quite a nice upgrade for me too

[@grics667]

Do not use exFAT at all, it is not journaled.

[@v3zMedia]

@@grics667 What should be used for people who want to use the drive for both PC and Mac then?

[@anonimity2562]

ExFat and Apple formats cannot be set up simultaneously in a single storage, so you would need to setup a NVMe for windows and another one for Apple with the respective OS tools (Simple partition and Apple equivalent).

[@1K3-s9h]

​@@v3zMediaexfat

[@ArthurOgawa-q9z]

Thanks for the teardown! For best results, always use the Thunderbolt 4 cable. Write speed on Mac should be tested with the drive formatted (Disk Utility) to an Apple native partition map (GUID) and file system (APFS). You will get faster throughput~~~~Arthur Ogawa

[@KillerkoUK]

Great review.. everybody was just testing this enclosure on their macs nobody on Windows... and nobody did the thermal test during the long copying test.

[@Myself-yh9rr]

I have the one with no fan and I am not a Mac user. I just have not gotten around to installing an NVME in it yet. In fact I don't buy Apple computers. There are some parts they seem to intentionally make impossible for you to buy without buying a new computer and that is just wrong! Or sometimes some models may have a catastrophic SSD failure. I hope whoever it happens to backed up their files because they will never get them back without that backup copy!!

[@krelllab6366]

The goofiest thing about this enclosure is the switch that is labeled "Switch" it's not labeled fan, it's labeled switch. I am tempted to modify this, so the fan is always on regardless of the switch position. But you have to be very good at soldering small things.

[@Myself-yh9rr]

I have the one without the fan and it is close to the size of a deck of cards. It is sturdy metal and machined to very close tolerances. Enough so that if that ever got dented the back cover might not close. Mine has spring loaded balls that hold the cover in place.

[@kamikamikamichan]

中を分解までしてくれて、清掃の時などの参考になる😊

[@BCE-111]

Thanks for your informative video. Well done. One thing is at 9:57 on your video this model isn't $135.99 - $30 = $105.99. That's for the non-pro model without a fan. The one you have here is the TBU405 Pro M1 which you can see on the listing page to the right of the non-pro model. That one's $159.99 but also has discounts on different sites. I just bought one of the pro models at a steep discount. Upgrading from the prevoius TBU401 model which also runs super fast but doesn't have a fan so runs hotter. I'll sell that one and get what I can. I have a 2TB M1 Mac Mini and am using a WD_BLACK 4TB SN850X NVMe formatted to APFS and get about 2800 MB/s write and read speeds. But someone in a review for this said they bought a better Thunderbolt 4 cable than the supplied one and doubled their speeds. So I may try that. Thanks again for your review.

[@carstencroessmann]

Can you remember which review it was? I want to know which cable. Thank in advance

[@jamesgrove]

You won't get more than 3000 as the limit to TB is around the same figure.

[@carstencroessmann]

What was your steep discount price and where, which online store?

[@CryptoiNNERG]

I also have the TBU401 but I have the pro model (TBU401PRO) and this model does have a fan. I just bought it on amazon for $109 during prime day. Only $20 more than the one you hav, the non pro model which just means dosent have a fan.

[@NYC_MidnightVibes]

Have you ever had to update the firmware of your WD_BLACK 4TB SN850X NVMe on the Mac mini?

[@kamikamikamichan]

Please tell me about your Mac. Intel Mac or Apple silicon Mac? I have a iMac 2019. If your Mac is intel Mac,this enclosure is best choice for me!

[@TechGuyBeau]

Apple. But it won’t matter for the enclosure

[@Natak222]

Appreciate this review & unboxing :)

[@stevesutton772]

Yay! Winter! Pop those windows (no pun intended) and let's get gaming! Had to retire the gaming laptop after about MONTH cause it was getting up to 200 degrees during the summer!

[@MikeR33D]

Nice. This is my favorite SSD enclosure until Intel releases any faster TB4/USB4 chips than the JHL7440. Thanks for the tear down, I just wanted mine to work and didn't explore. Aftermarket thermal pads are better than what is included given the low Z height of SSDs nowadays. Cool temps and fast data transfer, what else can we ask for?

[@TechGuyBeau]

I use this in EVERY game testing video. And for daily gaming. It’s that good

[@MikeR33D]

@@TechGuyBeau Likewise. And for installing beta OS and for my VMs. It just works. Only downside is most SSD software cannot see the drive behind its chipset. But that's easy: once in a blue moon when a firmware update hits, I just pop it into a $10 USB to NVE board, update, and back in the enclosure it goes. Can't recommend it enough. Cheers!

[@KTT_-vw2ur]

Thanks for the review I was thinking of getting this enclosure your review help confirm my choice

[@soundknight]

Hot hot hot" means nothing. What unusually happens is something else like a short / blown cap. Also, some shielding melts over time and releases moisture over electronics and this causes a short.

[@enricoluzi70]

Could the fan be replaced with a more powerful and silent one like the small Noctua?

[@Q8Webmaster]

Thank you so much for the video! I came here to know if the fan can be switched off using the switch button so that I can make a solid decision to get the fan model, which I did. Can’t wait to test it with Caldigit Ts3 plus hub.

[@charleshines2142]

I wonder if it has a small fan in it. That vent hole on one side looks like there could be one there. We all know that NVMEs can run hot. From what I hear that although heat is not good for their longevity cooling them too much is also bad somehow. I doubt that this case would cool them too much. It might take something a little bit extreme and maybe impractical to start running into that problem.

[@TechGuyBeau]

Yes it has a fan

[@devarni]

Thanks! Big question: does it need the fan? the same enclosure is available without fan

[@TechGuyBeau]

I’ve used both. The fan model runs cooler for sure, but neither thermal throttle

[@fishberk]

Thanks for the review! I have a couple of questions: What type of USB ports does your Windows machine have? Are they USB 3.2 or higher/lower? PCI extension, or built into the motherboard? The speed seems too good to be true! 😅

[@rabc101]

Hi, great video, can you share the screen in Win11 - Settings - Bluetooth & Devices - USB - USB4 Hubs and Devices - and then expand the SSD to show Bandwidth Up / Down?

[@onlyvik]

I bought two of them and very happy. Running with the older Samsung 970 pro 1 tb drives and they stay around 34-35 degrees. My living room is around 18 degrees.

[@notorious.nip.888]

Just wanna ask whats the trick with the thermal pads does it need to touch the metal lid? Would that dissipate heat a lot better rather than just sticking a thermal pad on the sad and not touching the lid?

[@MatttAt]

Yes, even better if you attach a shim of copper to the inside of the case so it touches the thermal pad. A nice little mod that would improve the heat transfer even more.

[@vampritt]

this one use MTK chipset. its not stable for thunderbort 3 and 4 and do not have stable connection to windows with sudden disconnection/connect random moment. get the intel chipset its more stable and less watt usage (4 watt compared to 8 watt on MTK)

[@MatttAt]

This model he reviewed here uses JHL7440 which is the Intel certified chip.

[@bobmetzger51]

My question is does the fan just cool the case, or does it cool the NVME. Either way it’s going to help dissipate heat.

[@TechGuyBeau]

It cools the nvme

[@zagohcap1]

What is the cable lenght?

[@timmark4190]

How did you format the drive to be used on Windows and Mac

[@TechGuyBeau]

EXFAT works on both

[@BrickTamlandOfficial]

one thing i dont get is how the 40gbps speeds arent translating to real world speeds. I know that samsung 990 pro 4tb will read and write at 7450mbps but it looks like the cap for external devices is only 3500mbps. isn't gen 3 drives supposed to do around that speed and gen 4 drives can do double? it would be nice if they were closer to that 40gbps speed.

[@andrejcupac7359]

it probably runs faster on windows cause you formatted it to suite windows computers, unless you did the Mac format and then reformatted when you switched to windows (since the Mac format doesn't allow you to write to the drive from a windows pc, only read). You didn't show it in the video so I'm just guessing

[@ipoponq]

Nice! Is it possible to change that rubber thing to a metal screw to keep the nvme in place?

[@BrickTamlandOfficial]

you would need the standoff in the main board, then the nvme over that, and finally the screw to hold it in place. so if you have an extra screw and standoff it should fit. EDIT: actually the stand off needs to be screwed through the main board into the case and since the case has no standoff screw hole underneath, the standoff will not keep the board in place.

[@mortimersnerd1348]

Have you tested this enclosure while running Linux OS? I bought an acasis enclosure but different model which is advertised as being compatible with Linux, but when you plug it into the pc, linux doesn't even see it. If you got this enclosure to work in linux, what did you do to make linux see it?

[@JD-nf6xb]

I have heard that that the 405m1 as well as the 405prom1 are basically the same (heat, performance). Is it nonsense to purchase the fan version due to its massive size and 30USD difference?

[@TechGuyBeau]

That depends. The fan actually does work to keep the ssd cool

[@uptowndoof3993]

Does it have a temperature sensor? How are you getting the heat of the unit?

[@TechGuyBeau]

Hwinfo & Crystal disk mark. I use both

[@uptowndoof3993]

@@TechGuyBeau I get the software part, but is the temp calculated algorithmically? Far as I know, there is no sensor to the unit (or maybe there is?).

[@AnoNymInvestor]

@@uptowndoof3993 it is a standard PCIe connection via Thunderbolt, so that tools can read the S.M.A.R.T. info from the SSD. And yes, NVMe SSDs have at least 2 temperature sensors (controller and NAND memory).

[@uptowndoof3993]

@@AnoNymInvestor Good to know, I DO know it's the controller more than the NANDs that is most important.

[@JDW-]

Could you please reformat it APFS, then retest on the Mac to confirm the speed is on par with Windows? That's a critically important point for those of us who use Macs exclusively. If the speed is in par with what you showed on Windows, then it's a worthwhile buy. But if the speeds do no better with APFS, then it's not worth it for Mac users. Thanks.

[@viktorascybulskis]

What was the maximum amount of data you were able to get on it? It performs well in tests, but when you need to load 500GB of data on it, it just overheats and crashes! What kind of drive did you put in it?

[@TechGuyBeau]

I use mine daily for gaming. Also there is a new model with a built in fan, I use that for hours of video editing at 4K

[@Maksitto]

​@@TechGuyBeauis it not overheating?

[@DosBlade]

Some of these those chips get way hotter then the SSD

[@mahajanphoto]

acasis tbu 405 m1 has not worked for more than 5 months it gives an error message disk ejected not properly after working for just 15 minutes in my Mac studio

[@hugsandthanks1460]

Hey, I have got the fan version as well. But when I press the fan button nothing happens. So, I thought the button is only there to turn off the fan when it turns on automatically. But looks like you can turn on the fan using the button? Maybe I received a faulty device? Do you think I should contact Acacias regarding this?

[@TechGuyBeau]

Of course. Also make sure your usb can supply enough power, aka try a few other ports and see. If nothing then return it

[@carstencroessmann]

🤔🤔🤔You gotta be kidding me, are you really asking when you bought it official to contact in a warranty case the manufacturer. No way? I thought it's getting worht here in Germany but that's top notch. You nailed it. Even you wrote the name wrong too, it's spelled Acasis

[@hugsandthanks1460]

@@carstencroessmann Hey low life, leave me alone. I just wanted to make sure I wasn't missing something.. not a crime.

[@wolfauu]

The enclosure is perfect. But, your NVme is slow! Try the Samsung 980 Pro or WD SN770 which the company clearly tells you to use to get maximum speeds. That gets you to 3000 MB/s.

[@TechGuyBeau]

No, the nm800 is as fast as those two Drives easily. It’s a supremely high end nvme

[@wolfauu]

I have the same enclosure and a WD SN 770 that I use on my M1 MacBook Pro. I get to 2850 MB/s-2900 MB/s. With the Samsung Pros I know people that get to 3300. Not all SSD’s are born equal, some are just different gravy.

[@beau-urns]

@@wolfauu it doesn’t have anything to do with the SSDs. All of these GEN four drives are rated to go significantly faster than what this enclosure can do anyways. You were limited by the Mac OS file system

[@maratpirate6343]

these 40gbt enclosures are cool, but they are a little too expensive and bulky for me to justify the purchase, im gonna stay on a 10$ 10gbt for now

[@John-gm8ty]

would not even need a fan if they had of used the chassis as a heatsink for the chips as well, a missed opportunity.

[@gaetanobruno5889]

The speed is important, but I am looking for the most reliable enclosure in terms of heating and durability. Can someone recommend an enclosure that you have been using for some time without any problems? Thanks.

[@TechGuyBeau]

This one is superb. I use it daily for many months

[@gaetanobruno5889]

@@TechGuyBeau i really appreciate it. thanks for sharing

[@breakingtwitting]

dont use enclosures. just buy external ssd from samsung. price not biting plus you have good vendor firmware support

[@vinodkumarsingh1973]

​@its expensive and and less warrenty period less tbw rating and less speed it's to buy nvme ssd and good enclosure like in this videoeakingtwitting

[@breakingtwitting]

@@vinodkumarsingh1973 wrong. warranty from samsung for external ssd is 5 years!

[@vinhdo1609]

how do u get up to 3500mb on window. i though there's latest connect USB C 3.2 gen 2 only capable of maximum 2000mb.

[@TechGuyBeau]

this is a USB-C 4.0 enclosure. and my laptop has usb4.

[@vinhdo1609]

@@TechGuyBeau Oh. i see. i guess i'm looking for a new motherboard with usb 4. Thank you

[@MatttAt]

If anyone pairs this enclosure with a Crucial T500 2TB, I'm on a Lenovo Legion 5i Pro (Win11,12700H,3070gpu) with a TB3 port. After updating the firmware for the drive I'm maxing out at 1860MB reads and 2000-2100MB writes. Temps are a bit higher than the nvme reviewed. I wasn't expecting 3000 but this is slower than expected for what was supposed to be one of the fastest 4th gen drives. Not sure if it's the included cable or what's wrong...

[@TechGuyBeau]

How full is the drive?

[@deivytrajan]

Sorry, but this is just misinformed. Solder melts at 188 degrees Celsius. Not a single NVMe will run at such high temperatures. They would all shut down. Most of them will never reach 100 degrees and usually under 80 so far from solder melting temperature. Another issue is the fan - that fan will be noisy and will consume additional power, making this enclosure really bad in terms of power efficiency and not viable for video recording (because of that bzzz from the fan). Another issue is heat dissipation. What's the point of a thermal pad if that small metal plate is not even making contact with the outer metal case? It's just wasted potential. As for metal, solid metal doesn't mean it's better. Aluminum is much weaker but it doesn't bend as much as a stronger steel. Despite these comments, I appreciate you making this video and showing us the product! I'm looking for a good nvme enclosure for external camera recording.

[@TechGuyBeau]

The fan isn’t noisy and consumes little powe. It keeps the ssd cool so that it doesn’t throttle. I find this enclosure to be superb, and others the same. One of the best on the market

[@vDJoone]

Is this thunderbolt 4?

[@TechGuyBeau]

USB4 40gbps. So it has the same speed yes.

[@gerdj.1252]

You see the difference from the Benchmark and the Reality?I think 700Mb/s is a very poor Result.I never do any Benchmark.Only test under realistic Conditions.

[@DanDansNoodle]

Can you recommend anyone for ssd enclosure that i could play games off of? Or is it this one? ❤

[@TechGuyBeau]

I game in this one every single day. All of my game testing videos are also done on this enclosure. It’s really a 10/10

[@DanDansNoodle]

@@TechGuyBeau appreciate the answer. Have you used / heard anything about the ugreen one?

[@BoboMedia007]

I ordered one and the fan came broken and unfunctional. :(

[@TechGuyBeau]

Oof. Send it back? Luckily it runs cool even without it, but see if you can get a new one

[@BoboMedia007]

amazon return! @@TechGuyBeau

[@Noob_Master_24]

Interesting ❤

[@shawnmurray7232]

After getting this enclosure, I'm afraid to say that the poor performance (24Gbps to 25Gbps actual transfer rate) is due to the enclosure itself :( My CDM 8.04 results over PCIe Thunderbolt 4 add-in card in Windows 11 with both the Samsung 990 Pro 2TB, and Solidigm P44 Pro 2TB are within 1% of your results. But my USB 3.2 results are horrible at about 8Gbps transfers.

[@TechGuyBeau]

Mine gets 3500 Mbps. Perhaps yours is defective? Might be worth exchanging

[@paulgrandflickshow]

Are you plugging it into the fastest socket on your computer?

[@shawnmurray7232]

@@paulgrandflickshow Definitely: USB 3.2 Gen 2 Type C on the motherboard I/O panel. Only gets about 1GB/sec (8Gbps) read & write with this enclosure. Same port hits 2.1GB/sec (17Gbps) read & write out of my SIIG 20Gbps enclosure. My Add-in TB4 card hits 3GB/sec (24Gbps) read & write with the ACASIS 40Gbps enclosure.

[@oppressorable]

That's the expected result. Those enclosure use a thunderbolt 3 chip and a usb 3.2 chip. None of those two chip are able to do usb 2x2 speed and hence you can't get usb 3.2 gen 2x2 (20 mbps) speed. I heard that Owc express 1m2 can do usb 3.2 gen 2, usb gen 3.2 2x2 and usb 4. The thermal design seem to make more sense since the large heatsink actually touch the top of the ssd. The heatsink is also actually optimised for passive airflow. Most of those enclosure have the fins of the heatsink way too thigh for passive air movement. The bad part is that it's backorder for a long while as the time of this message.

[@turtlefeet7722]

thanks

[@psidhu1979]

what chipset is it?

[@GuillaumeGourlaouen]

JHL7440

[@psidhu1979]

@@GuillaumeGourlaouen is this better than the ASM2464?

[@GuillaumeGourlaouen]

No, asm2464 is newer and faster. (4x4 lines vs 3x4)

[@psidhu1979]

@@GuillaumeGourlaouen thank you very much

[@MatttAt]

@@GuillaumeGourlaouen ASM2464 can also be much, much hotter. That would concern me. Some people have seen the temps go 10c over the JHL

[@rickmesta6033]

Will this fit the Samsung 990 n me 1tb with heatsink?

[@TechGuyBeau]

You don’t need a heatsink, the whole case acts as a heatsink

[@alvin12341]

Same question. Does it have enough space without removing the original heatsink from the ssd ​@@TechGuyBeau

[@breakingtwitting]

it's freaking portable cpu than actual enclosure

[@MaiwandHimmat]

That's not thunderbolt 4 lol the speed is very low

[@TechGuyBeau]

That is exactly thunderbolt for. Thunderbolt four or USB four speed run at about 3500 MB per second. That is exactly within specification

[@jiraffe2021]

W Beau

[@joeniemand9047]

are you able to connect it to your phone and copy more than 1.5GB data without it failing?

[@TechGuyBeau]

My phone can’t even hold 1.5 GB of data

[@TheValueOfN]

0:03 40 Gigabytes per second or 40 Gigabits per second? This is not a good start to a video that I'm watching in order to educate myself with facts when I'm researching the best enclosure to buy.

[@TechGuyBeau]

Pretty sure you can figure it out though ;) Usb4

[@TheValueOfN]

@@TechGuyBeau Of course I figured it out and I've just ordered this for my 990 Pro. Some people - who are less tech savvy - will hear, "40 Gigabytes per second" and the misinformation could result in bad decisions. I recommend an edit to your vid.

[@oppressorable]

It has a fan but the biggest part of the chassis(which happen to have the fan) doesn't even touch the hottest part of the ssd. Basically, the smallest plate that is not fan cooled will see the most heat. It's not going to make a huge difference. Nvme enclosure generally suck thermally. I am quite disappointment to see an enclosure making grand claims about thermal not doing a better engineering job. It's better than the average enclosure for sure but i am disappointed. Also i am not a fan of toolless enclosure. Screws will make for a more consistent pressure on the ssd.

[@shawnmurray7232]

Your Amazon links are not working... A 40Gbps enclosure should hit around 4000MB/s read & write speeds in CDM 8.04. My 20Gbps USB4 external enclosure hits 2050MB/sec read / 2030MB/sec write performance in CDM with a Solidigm (Intel) P44 Pro 2TB NVMe. Your poor performance is most likely due to the Lexar NM800 Pro NVMe drive. Under ideal conditions, that Lexar drive maxes out in an internal M.2 slot at about 3500MB/s read / 5800MB/s write in CDM in various reviews that I've seen. However, the write performance could be due to the enclosure itself, I'm seriously thinking of getting one of these enclosures for my own testing. I have a Samsung 990 Pro 2TB, as well as the Solidigm (Intel) P44 Pro 2TB that I can use for testing. Either drive would eliminate the NVMe as the slowest link.

[@TechGuyBeau]

Thanks looks like the link died for some reason. Had to replace. Overall the enclosures runs well and have no issues with it Expect 3000 ish megabytes per second on usb4. That’s pretty typical of 40gb/s bandwidth

[@Smart_boy2001]

First