Aluminum Dual Bay Hard Drive RAID Enclosure with Cooling Fan for 2.5“/3.5" SATA HDD/SSD with USB A/C 3.0, Tool-Free HDD Enclosure, 4 Modes(Support RAID 1/0/JBOD/NORMAL)

So far so good. Using it on a linux home media server with 2x 20TB drives and RAID 1. Linux detected it immediately and after i set to RAID 1 and held the reset button it popped up as a HW RAID and GParted worked perfectly, now working to transfer my 8TB of Data to it. Biggest complaint is that the plastic rails take some fussing with to get perfect, but otherwise work great.

I have been running this raid box for about a week now, only in normal mode for now, and it has been everything you would expect. The drives install easily and the case is very sturdy with quality plastic. I would point out that noise level is almost non-existent despite the description. I honestly can't even hear it with the fan I run also whirring. The packaging box was slightly damaged so, to safeguard my drives, I went through the reset procedure on the back of the unit before adding drives, just to make sure it had not been set to a RAID configuration if this was a return. My drives recognized quickly when inserted hot. No complaints so far.

It is extremely fast -- it bricked four Ironwolf NAS drives within seconds!!! I am a long time IT guy. User of RAID since the late eighties. Needed simple storage to offload some old files from my NAS. Set up and tested all four Ironwolf drives with SeaTools before installation and they were perfect. Installed all four (I wish I only had installed one...) into the enclosure and turned it on. Unit is supposed to come up as four separate drives which you then reconfigure into RAID config that you want to use. Four drives each lit up with blue (normal) led indicators, but the unit would never mount the drives -- no indication of USB device in explorer nor disk management. Powered down and pulled one drive out. Connected it directly via a usb cable and the drive would no longer mount. Left the drive connected with only power and it was usb recognized after approx 30 minutes (this is a hidden reset feature on some ssd drives). However, drive would still not mount. Ran SeaTools on the drive and found that the firmware values were all corrupted. Example, SeaTools stated the drive was 31245893.4 gB in size. Tried to use SeaTools to initialize the drive and it failed. Tried to use SeaTools to reset the firmware parameters I could see -- failed again. Therefore, I have two shipments to make on Monday -- sending this piece of crap back to Amazon and sending all four drives back to Seagate for warranty exchange. FYI , if you are brave enough to try this unit, please note that changing the config of the unit is not as simple as it seems. The unit uses dip switches, so you would figure that turning off the power and changing the dips would suffice. However, the procedure --not significantly called out in the very spartan manual -- is to power down, change the dips, hold the reset button down for ten seconds while bringing the power back up. The reset button is required to get the unit to recognize that the config has changed. I am wondering if my unit was a return that was resold and the dip switch config LOOKED as if it was set to factory default startup, but maybe someone had tried a RAID config and then set the dips back to the default without doing the "Reset+Power up" to flash the change back to factory default. Unit looked new, but OEM box had no tape on it and one of the drive trays was missing its "peel-off" plastic film. In any case, Caveat emptor!

Great small Raid device, for those with extra drives setting around. I love the easily removable bays, and how easy it is to add the drives. For full size drives, there is side rails that pressure fit into the side screw holes of the drives, taking just seconds to attach. For 2.5 drives, the rail closest to the drive needs to be removed, which is easy to do, as it just snaps off the drive bay, and then you use the included screws to attach drive to bay.. which is quick and easy to do. The drive bays inset and engage smoothly. The power adapter and USB cable are included. And love that there is on/off switch on back of chassis. HOWEVER, I had some problem with HDD drives being recognized and configured as a Raid One. After trying a few combinations of the reset button-on switch-and holding reset in long enough, unit finally did it's thing and created the Raid 1 that I had set the configuration to. File transfer speeds are adequate. AS for FAN NOISE - I saw reviews that complained about this - HOWEVER - on my unit fan noise was negligible, with the fans in my desktop computer being louder. Maybe mine features an upgraded fan, so for me I am very satisfied. They do have Raid Manager software on their website, which I downloaded. It connects to the unit, with an intuitive interface, and may be a better route for you raid setup initially.

This was the only enclosure I could find that could handle 20tb drives. I bought it just to make sure and then bought the 6 bay unit. I use it to back up my 100tb compelleant array. Everything was easy peasy. I'll probably get another 6 bay although I can only find the 8 bay now, but that is fine. I plan to daisy chain them for redundant backup. We just moved and still unpacking, but these were some of the first to get set back up.

If you follow the directions on the back of the unit, they are wrong. It will not connect. It was not until I discovered that the directions and the pamphlet and the paperwork that it came in were correct. I can’t believe they made terrible mistake like that

Good indication lights on front panel that the thing is working.That's why I went for this enclosure.Zero hardware assy worked quite well, I like that alot. HDD fit secure and snug.RAID options are nice, though I am going with Normal mode, since if the controller fails, so are lost the RAID data.Recommend.update: the fan is a little noisy as the box heats up, so advice is to raise it on some foam pads and that will stop fan from resonating with a wood shelf (in my case).update 2: I am seeing write speeds to a disk inside at up to 1.5Gbps, so this puppy can move USB 3 data at a decent rate.