Mediasonic ProRaid USB Type C 2 Bay Raid 2.5” SATA SSD / Hard Drive Enclosure – USB 3.1 Gen 2 10Gbps Speed / USB Type C (HUR6-SU31C Grey)

Plugged in 2 x 2 TB SSDs in Raid 0.. works great and quite quick so far. Installation was easy, case is sturdy enough, no too big.

Purchased the Mediasonic (Amazon Jan 2017) as I wanted to get away from the larger, power consuming 3.5-inch RAID enclosures. Installed two HGST 1TB low power 7200 rpm drives and could not be happier with the performance. I too was a little concerned about the lack of airflow, but this was not a problem even with lengthy BitLocker encryption. Later installed two older WD Black 500GB 7200 rpm drives that required more power. In this case, lengthy BitLocker encryption caused the WD drives to get hot. However, my solution was to remove both covers and sit the enclosure upright, which seemed to lower the two WD case temperatures. My computer is a newer HP 17t with a USB Type-C port (USB 3.1 Gen I), which does transfer data a somewhat faster than the USB 3.0 ports (every little bit helps). With the HGST or WD drives, I have not needed external power. During normal daily use, the completely enclosed drives only get warm (not hot). Overall quite pleased with the Mediasonic enclosure.Tried a newer HornetTek Accelerator RAID 2.5-inch enclosure (much lower cost), which was a terrible experience and returned. See my separate review.

I've installed a pair of 1tb HDDs in this case; these drives had previously been used in RAID 1 (mirror) mode in an older case that died. Installing the drives in this case wasn't difficult, but it does require screws. Labels were provided to mark the drives. This is necessary if you ever take them out, because you have to put them back in the same slots or you'll lose your data. Before I reset it, as directed in the instructions, it showed both HDDs on the Mac desktop with the data intact, which was great... except they were showing up as separate drives, not as a singled volume. I reset the case, and it wiped the data on the drives, so I had to copy it all back -- nearly 600gb -- from the back-up I'd previously created. Time-consuming and a little annoying. It makes sense that the drives would be wiped if I was setting up a RAID 0 (striped) volume, but I don't understand the necessity of doing that for RAID 1 when the drives were already in exFAT format and were exact duplicates, having already been used in RAID1.Because I'm using HDDs, the case needs a little more juice for spinning the platters. It can't get enough power from either the USB 2 or USB 3.0 ports on my 2009 Mac Pro, or the USB 3.1 ports on my HP Spectre x360 laptop, so I use the provided external power supply. This probably wouldn't be necessary with SSDs.The first time I plugged the case into the Spectre, Windows 10 didn't automatically assign a drive letter, even though it recognized that the drive was attached. I had to go to Disk Management and assign a drive letter. After that, the drive showed up File Explorer.The case is largely plastic, so don't knock if off the desk onto a hard floor.

I did purchase this enclosure (few months ago) with the hope maximize the performance of my 2 x Mushkin REACTOR 1TB. The disks were set in RAID0 (which is the only reason why I purchase the enclosure). The enclosure is connected to a Latitude e7370 with native USB-C port, running Windows 10 Pro. (I want mention that values indicated in this review may vary between configurations, but, still can provide an approximate idea or reference)Pros:- Very light weight- Comes with power supply- Affordable price- USB-C: the performance was R: 783.24MB/s -- W: 789.44MB/s (Acc. W time 0.444ms)- USB-3.0: the performance was R: 355.29MB/s -- W: 347.52MB/s (Acc. W time 0.444ms)- USB-C (NO power supply): R: 616.42MB/s -- W: 491.20MB/s (Acc. W time 0.386ms)Cons:- There is a very big problem with the enclosure. The file transfer from/to the device chokes!!!Basically, if you need to copy/move large files (>5GB) from/to the enclosure the process will drop the transfer speed from the values indicated above to a point of approximately R: 69.94MB/s -- W: 1.74MB/s (Acc. time 4.071ms). Similar situation may occurs trying to make simultaneous copy/paste instances (several small files and directories). Is not possible to use it host VMs. Using the USB3.0 interface is even worst.With a copy/transfer software you can start copying file, when the unit chokes, stop the copy… wait for about a minute, then continue until it chokes again, and so on… the problem is when you have to transfer a 50GB file… it might take hours (doing it overnight in my case).Settings to prevent the computer to disconnect the device, modifying the removal policy (to increase performance) and/or disabling the antivirus were some of the variables used to test (or try to live with) this enclosure.Again, the drive was purchase to be used as a high performance transfer media, and, unless this enclosure is defective I will not recommend it for such purpose.

Fast and overall awesome. Set up in RAID 0 using SoftRAID with a MacBook Pro. Installed two SanDisk Ultra II SSDs, and after reading the reviews complaining about heat, I took an extra step... I installed several pieces of thermal pad to transfer the heat from the SSDs onto the metal enclosure, see picture. I installed them in all four available spots on either side of the enclosure (for both drives - pic only shows it halfway installed on one side). After doing a 700GB Time Machine backup, it's just barely warm, nowhere near being "hot", so I think that did the trick. It's two pieces of 3.0mm thermal pad, so 6.0mm thickness to go from the housing to the SSD itself. I wish the manufacturer would include something to do this, but no complaints here.