ORICO Raid 4 Bay Enclosure USB 3.0 for 3.5 Inch HDDs External Hard Drive Bay Magnetic Cover Storage Case for Office and Home Storage Expansion Up to 64 TB(4X16TB) Aluminum-NS400RU3

Works great easy setup and had not issues

This is for the 4-bay enclosure.Ordered this because I have limited physical space and this fit the bill. I use it for a Plex server so I don't think I'll ever experience sleep mode.Build quality is solid - it's small and sleek, good-quality aluminum, and the front cover has magnets strong enough to hold it on solidly, but not impossible to pull off. LEDs are bright, very little wasted space internally.Honestly, if it worked well out of the box it'd be 5 stars. However, as another review mentioned, the fan used, along with the rear aluminum grill/cover for the power button and power/usb ports, are major design flaws that potentially could have fried my drives.A few hours after installing them and setting up the server, I went to do a basic heat check. I pulled the front cover off, touched the drives, and almost burned my hand.Ran HWInfo, and the drives were at 65C! I literally could not touch them. Most consumer drives are only rated to 50C. I had to shut it off and run a room fan over them for half an hour before I could touch them to pull them out.Here's what I found:The back plate cutouts are very small for a fan grille, and badly impede airflow. The other review mentioned cutting out a square and reinstalling to protect the ports, but I didn't bother - just took the back plate off entirely. This exposes the fan but the ports are fine, and the replacement fan I put in has a grille anyway. This helped significantly.The front cover is nice-looking, but the airflow cutouts are around the edges of the cover, and the supplied fan was nowhere near enough to draw fresh air through that route.The fan supplied with the unit is literally the weakest 12V fan I've ever seen - 0.02A (tested, it was closer to 0.035A but still). It barely pushes any air. Most fans of this size (92mm x 25mm) are pushing closer to 0.2-0.3A! I had an old, 3000RPM fan of the same size and swapped it out. It's loud, but it works.With the back plate off, and the replacement fan, I've got the drives running at 44-48C - on the warmer side, but nothing worrying. Pulling the front cover off nets another 2-3C but I'm ok as long as it's under 50.I've got a few different fans on the way that will hopefully be a little quieter and push a little more air - will update the review when I get them in.

Was a ok box for a few weeks. But then slot 3 stopped working tried other drives yet it was still broken. This thing probably slowly dieing of a heat stroke as the air flow to keep the drives cool does not exist. You literally have to take off the front cover and shove your own fan in front of the uncovered drives to even remotely cool. So I basically returned it as I'm not even going to bother with another unit.

Works great. Using as swappable backup drives, attached to home NAS and remotely mounted to multiple PCs.

The packaging and enclosure were packed nice and tight during shipping. The material is pretty much plastic but feels nice. I had 4x 2TB hard drives that were used independently to back up my old raw photos and drone videos but thought that I should start moving all of it to my NAS server. The enclosure recognized all 4 hard drives over USB in my Windows 10 NAS and I started moving about 5TB of data. After about 6 hours of moving files, Windows couldn't see those hard drives anymore so I rebooted Windows and even moved the USB cable to a different port. Finally realized that my Hard Drives were burning hot in the enclosure, so I shut it down. The provided fan in the back was not enough to cool the 4 hard drives which were tightly packed in the small enclosure. This item is not for me if it overheats moving files between the enclosure and my NAS. The enclosure might be good for normal consumers who don't need to move files a lot between their computer and the enclosure. I am lucky that all my files were moved over to my NAS before it decided to overheat and fail.

This one requires you purchase adapters to fit 2.5 inch drives. After reading some of the reports I believe this one would be too slow (not that the newer model I bought is fast).The newer model doesn’t have the magnetic cover in the front, it use’s screw. But the slides in the new one has holes in it for 2.5 inch drives.I returned this one.

The fan doesn’t move enough air to keep even one drive cool. The enclosure would als sporadically disconnect. The Mac software is only 32 bit so it doesn’t run on newer OS versions.

tried every trick to get this enclosure not drop drives on linux. after exhausting every option i found online I decided to return it.

So the common negative feedback on this product happened to me as well: overheat and self disconnecting. Firstly it will make the HDD very hot in enclosure and the fan is not efficient enough to dissipate the heat. Secondly, it is always ejected by itself. With these issues, I won’t even dare to try the RAID functions. Very beautiful product on the outside but crappy inside. I should have trusted the bad reviews to avoid this buy. Very disappointing product and should well spend the $$ on a proper and well reputable NAS device.