GRAUGEAR40Gbps M.2 NVMe SSD Enclosure, USB4 NVMe SSD Enclosure with Cooling Fan and Dual-Pipe Heatsink Aluminum, Thunderbolt 4/3, ASM2464PD Chip

The drive is fast, faster than many other larger USB4 or TB4 enclosures. I’m using it with a Samsung 980 Pro M.2 2TB SSD. Plugged into my Mac Studio M2 Max I’m getting speeds of about 3.2GB/s write and 3GB/s read. It is extremely well made and the all aluminum case has a quality feel to it that is heavy for its size. The fan does make a highish-pitched hum if you’re close enough to it in a quiet room but not something you’d be bothered by in a normal environment. I do wish the fan didn’t run continuously though. I feel it would have been better if it came on only above a set temperature threshold or at least only came on when it was actively transferring data and off when sitting idle. Maybe for a v2? Otherwise a very nicely built, quality product with faster speeds than most.EDIT: After having this drive for a short time I realize that it has or developed the following problem. When I have it plugged into my Mac Studio and shut down normally and then start up again, the drive mounts on the desktop and can be used normally. But...I realized just recently that the fan does not turn back on automatically! Maybe that’s just a defect with mine but I didn’t realize this until I went to move it and it was VERY hot to the touch. That’s when I realized the fan wasn’t spinning. The blue light comes on but no fan. If I unplug it and then plug it back in, then the fan comes on. I checked that this was happing repeatedly and not just a one-time fluke so I’m sending it back and will look for another enclosure unfortunately as I don’t want to have to unplug/reconnect after every boot or restart.

I use this encloure to house a WD SN850x 4TB drive to serve as a backup drive for my PCs in the house, and a few extra Steam games. This enclosure allows that drive to hit about 1/2 of it's full speed of 7000ish MB/s. Drive stays very cool as well. Overall love the design. If one thing to nitpick, I wish it were toolless, and that the screws were a more standard drive (Philips, etc.) Nothing against Torx, but at that small size it can be tough to find a proper bit. Otherwise great product. Look to buy more from Graugear.

I loved the design of this little drive, and it is nice and fast. It feels solid and well built. I was really enjoying this drive enclosure until the fan started buzzing. Good thing it was still within the return window when this happened. I'm going to get one that doesn't have any fans, just a giant heat sink instead.

This unit provided advertised speeds for my ssd and the included cable is better then the 3rd party one I was using before. I never noticed any sound from the units fan. Hooked this up to an M3 MacBook Pro and a AMD 5800x powered PC running Windows 11. Both connected and ran without issue.

This is USB 4 @40GBs. Great speed of 3.8GBs on a Macbook Pro M4 using WD Black NVMe

I’ve owned many driving enclosures, this by far gets the hottest I’ve seen yet. The built-in fan provides zero cooling, as it’s far too small.The included cable is junk. Using a quality cable helped a little, but still a ton of disconnects throughout the day.Speeds are OK for a few seconds but decline quickly because of the high heat produced.Returning this ASAP.Update: 07/02/2024It’s gotten worse. Overheats like crazy. I have to attach two coolers (pictured) to avoid disconnecting during Time Machine back up due to overheating.If the two coolers are connected, it does not overheat and Time Machine can complete back up.Did anyone at this company product test this before pushing the market?

Product basically behaves as expected but the fan has started to make a bad noise now after about a month of owning it. If noise doesn't bother you then this will do just fine.

I'm thoroughly impressed by its capabilities. The fast transfer speed allows swift and efficient data management. It's fully compatible with Thunderbolt 4/3 and offers backward compatibility with older USB standards, which is incredibly convenient. The fan is remarkably quiet, balancing cooling efficiency with noise reduction.Overall, this product works great for my device and would recommend to others!