Acasis40Gbps M.2 NVMe SSD Enclosure, with Cooling Fan, M.2 Enclosure for M1 M2 Pro/Max, Compatible with Thunderbolt 4/3/USB3.2/3.1/3.0/2.0, M.2 Enclosure Support SSD 2280/2260/2242/2230 B+M M-Key

This is a fantastic item, it’s reasonably small in size and the build quality is superb, light alloy with a switchable cooling fan that is hardly audible, I fitted this with a 2TB Samsung NVME 990 pro drive, and attached this to my Mac mini m1 and set it up to be the boot drive, this runs perfectly. I am getting faster speeds from this drive than I am getting from my Mac M1’s built in ssd hard drive. File transfers are so fast. It has never overheated even under continuous loads. I will be purchasing a second one in the future and have no hesitation in recommending it.

Very solid well-made ssd enclosure. I'm getting very good read/write speeds. One thing to note is that the correct lead is very significant - if you use the wrong type of cable it can drastically affect the speed of the drive, so make sure it is a TB4 cable.

The first one I got didn't work, sent it back and got a replacement by 9:30 the following morning, which works perfectly. If you have very sensitive hearing, then the fan may bother you a bit, but it's very quiet and you can always tuck it out of the way. comes with a TB4 cable and with my 990pro I've got speeds of about 2700MB/s which has improved my workflow no end.

What a brilliant little device this is. So easy to use, and unlike my previous enclosure I tried, it just gets warm.Truly ‘tool free’ to put your NVMe chip in, use the rubber stopper and apply the thermal tape. Clip on the cover and you are good to go.There is a push button switch that turns the fan on and off. When the fan is running it’s very quiet, and very efficient at cooling. I leave the fan off and it is just warm. Perhaps under heavy data use the fan would be required.If I had to complain about one thing, the fan could be temperature controlled?Fully recommend this enclosure.I used a Samsung 990 Pro 2TB NVMe chip.

I bought this to work with my new Mac Mini M4. Being thunderbolt 4 it is blisteringly fast. Okay it's not cheap but it is a perfect addition to my setup. if you can add a fast NvME drive like I did you'll think you're using internal storage not external.

I inserted a 4TB Crucial P3 Plus SSD into this and it was fairly simple to set up. It is very solidly build and has a premium feeling weight to it.The included fan can be useful for large transfers and it is very quiet, barely audible more than 2 meters away. The speeds are great too, often time averaging around 2GB per second. One thing to note is that this enclosure is more aimed at a static setup where you don't want to be swapping drives too often as it only includes two thermal pads which are needed for optimal performance but tricky to take off once installed.Overall, I recommend it and am happy with the purchase.

Needed some extra hard drive space without paying the Apple Tax on SSD so after researching wnet for this along with a 4TB Crucial P3 stick of SSD. I'm getting about 1400MB/s write and 2100MB/s read, and I was hoping for more in the region of just over 2000MB/s write, consdering the set up and via Thunderbolt 4. However, it may well be due to it being plugged into a Caldigit TS4 dock and also having a Thunderbolt 3 monitor attached as well as numorous other hardware attached to it, which is bound to reduce the bandwith, but that still appears to be slow. Strangely when I look at the system report, it is connecting at Thunderbolt 3 speeds. I am going to change things around to see if I can improve those speeds by plugging direct into the MacBook, which I have tried before, but still not getting the speeds I expected. As for putting it together, that was a breeze. From unboxing to up and running was 5 - 10 minutes max and I have had no issues withoverheating, with the fan being on most of the time, you dont really notice that much noise. It was stilll a cost effective way to add SSD to the Mac and in farness, even the speeds I am geting now is fine for what I am using it for, mainly for FCP and theres been no issues yet, but be good to improve them. Price for the enclosure was also good, on offer at the time, which often happens, look for those vouchers and the build is good, nice and sturdy, though it can possibly be a bit to eay for the top to become loose, but I dont plan on using it as a portable drive but more of a permenant fixture with the dock. I'm 75% happy with it, though if I was building anoter one, which i probably will, I'd probably try a different brand just for comparision of speed.

had the owc 1m2 and was disconnecting like crazy.put 2 layers of thermal pads(bought separately 0.5mm + 1.5mm) it touches perfectly the underside of the case)works like magic, no fuss, no disconnects on apple silicon(i read that this one was the most stable).nobody seems to address this issue in the youtube reviews.so if you have an apple silicon this Acasis is the one to get 2800mb/s speeds on both read/writes.I put my home folder in it and all of my home files(mac os)