3 Bay Hard Drive Enclosure with Cooling Fan for 2.5“/3.5" SATA HDD/SSD with USB A/C 3.0, Support 60TB, Hot Swappable, Daisy Chain Expansion, Tool-Free HDD Enclosure, DAS(NO RAID/NAS)

Great all-round! RAID is not officially supported, but this worked easily, instantly, and flawlessly with Windows Storage Spaces to set up a mirrored array for 2x 14TB drives for a Plex server.Also, I have no idea what the volume warning about 40-50gb fans is talking about; the fan is virtually silent.Solid build quality, tool-less plastic trays. Seems sturdy enough. Exactly what I wanted for a respectable price.

I recently replaced an old, home-built system with a small SSD and two high-capacity HDDs. The new system is in a small form factor case with a 1TB SSD, but no room for the old HDDs. This external case allows me to reuse the old drives, retaining all the stored data.The fans keep the drives cool during extended use, and the USB 3 connection supports acceptably fast data transfers. The product description warned that the fans were loud, but the noise is modest and quite acceptable.Overall, it's a good solution at a reasonable price.

This enclosure is a quality, functional and thoughtful R&D-ed product!THE GOOD:This is an excellent little enclosure! I was surprised at how compact it is. I bought the 3-bay version, and I honestly couldn't be happier with it!I've seen a lot of the negative reviews on this brand, and while I can't speak to the two-bay, four-bay or other sized enclosures, I can say my 3-bay works great!Some complaint-reviews talk about not being able to get the drives to align and seat properly with each drive's power and data connections, and fit properly inside the enclosure. NOT TRUE! To be fair, I had this issue at first, as well. However, this isn't due to a design flaw, it's due to (user error.)This is a precision built enclosure! If you install your hard drive into the removable tray, (but fail) to ensure that (each) of the 4 plastic hard drive retention clips are properly seated into each of the hard drive screw-holes, the drive will be almost imperceptably askew, thereby denying the drive the ability to seat in the power and data connections, inside the enclosure.Once you get the hard drive properly installed on the tray, the drive will slide in perfectly to the connections, and lock into place.The metal housing has a high-quality textured black protective coating. The plastic drive trays are thoughtfully designed with functional precision, purpose and clever resolution. The drive tray, spring-loaded locking buttons serve a dual purpose as a drive release mechanism as well as an air inlet for airflow. It's really quite a clever solution for two problems! Not only that, but they made the release buttons ergonomic and contoured to your fingers, and gave the buttons a beautiful, contrasting blue color as well.THE BAD?There isn't much to say that's bad. Some people complain about the noise from this enclosure, in their reviews. I don't see what they're saying. As I mentioned above, I have the 3-bay enclosure, so of course, you have the noise of the 3 hard drives spinning, but that isn't the fault of the enclosure.The cooling fan of the enclosure has a quiet hum to it. I don't find it to be loud, even when it's the only sound in the room at night.The one negative thing I can come up with is the hard drive mounting trays have little plastic posts that insert into the hard drive mounting holes, to secure the drive to the tray. I had to format the drive a couple of times. After removing the drive a few times, one of the four plastic posts snapped off inside the mounting hole.Beyond that, I love this enclosure!

I use this enclosure for 3/4 hours, setting up a raid 5 array, which means continuous access for a few hours. No issues.Pro:* The case is solid, the trays are plastic, but not cheap.* The internal electronic is as described and it works nicely with Linux.* The price is very reasonable.Cons:* the fan noise is just loud enough that you do not really want this device in your office. The vendor warns buyers, so no surprise. In my case, the device will be installed in the garage anyway.* The design could be improved: the backplane impedes the airflow, and half of the few holes are at the center of the fan, when they should be facing the blades. After a few hours, the case was warmer than the air pushed by the fan. It was not hot, though.

This thing works great but I have ought against thee (to quote the King James Bible).The blue locking brackets on the drive sleds are tricky to get lined up into the screw holes on the drives (3.5"). I mean, it is indeed toolless but those clips are pretty finicky. Once you finally get them lined up and snapped into place, you're in business but it's a little frustrating getting them there.I have another 8TB Iron Wolf HDD on order but I tried a transfer between two drives in the unit and performance was less than spectacular. That's fine. I didn't expect lightning speed for HDDs over USB 3. Windows reported 70-80 MB/s. That's about what you get with HDDs.EDIT: The transfer speed from an SSD on the same computer (internal SATA III drive) is 110 MB/s as reported by Windows. I figured that needed to be said because I made it sound like it was slower than it actually is. Between drives within the same enclosure you only get around 70 MB/s but that's not the whole story. I hope that's clear...I ran CrystalDiskInfo and the drives ran a little hot (50 degrees C.). For me this is fine. This enclosure will not run constantly anyway. I use it as an offload kind of device. Movies and whatever that I don't have in active rotation, I save to these occasional hard drives. I'm not doing anything fancy or demanding.EDIT #2: This temperature reading occurred after the disks had been transferring data. I mean, it still runs a little hot but it has to work up to that. I bought this enclosure because it's metal and not plastic. Plastic enclosures, honestly, SUFFOCATE HDDs. With an integrated fan on the unit, I expected better.If I were going to use this in the enterprise or even if I intended to run it all day long every day, I'd be concerned. The unit has a fan in the back but it's not moving enough heat out of the enclosure. I have two 7200 RPM HDDs mounted in there and 50 degrees C. is pretty hot for all day long.It will be nice when I get my new Iron Wolf HDD. It should be in this month's Amazon delivery.