Review on 📁 Mediasonic 4 Bay 3.5” SATA Hard Drive Enclosure with USB 3.1 Type C Hub - USB 3.1 Gen 2 10Gbps (HFR7-SU31CH) by Cindy Foster

So I wanted to add two of these to my Mac Pro 5.1 with Sonnet Allegro USB-C 4-Port PCIe (USB3C-4PM-E) cards. The cables that came with it were too short to reach my tower so I bought another one. I filled them with 8 Toshiba N300 12TB hard drives. I did some research first to find that they were split into two separate RAID arrays with two drives, not all four! This is a common negative review about these coves and that is why the cove itself gets negative reviews from people who have NOT read all the information before buying. I put a Sonnet card in my Mac Pro, 8 HHD in two cases and loaded one in time. All drives were matched and I formatted two raid arrays, giving me two 24TB per enclosure. So far, so good. My Mac Pro shows four 24TB drives. I started migrating data from three of my Mediasonic H8R2-SU3S2 ProRaid 8-bay external hard drives using Carbon Copy Cloner software. That's when it got interesting. My 8-bay cases connect to my Mac Pro via a Sonnet Allegro Pro USB 3.1 Type A PCIe card (four high-speed 10Gb/s USB ports). I started getting warnings that the hard drive wasn't ejected properly. The new enclosures were simply dismantled. After some research I ordered different cables and this time made sure they matched the E-Mark IC cable description that Mediasonic used in the packaging. I ordered them from Revain: (https://www.amazon.com/gp/product/B07TP9R88Z/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1) After connecting these cables I had no connection errors. I was transferring data at about 1.5TB per hour (about 420MB/3.33Gbps). My 8-bay enclosures using USB 3.0 were transferring at around 1TB per hour (~275MB/s / 2.22Gb/s), proving that the enclosure's interface is much faster. If each enclosure is configured for 24TB of data and a 24TB clone, I use 48TB. Data 24 hours a day and so far I've had very few issues that don't happen with any other setup I've had before so I'm very happy. Cool. I still haven't noticed the fans turning up for some reason. My room is kept at a constant 67 degrees to help my electronics. My setup: Mac Pro 5.1 2010 with High SierraSonnet USB C x 4 PCIe card Two of these Mediasonic cases (with one connection per PCIe card driver) Eight Toshiba N300 HHDT with 12TB Two UNIDOPRO 6ft USB-C cables Average real speed: 1.5 TB per hour, 3.33 Gbps, 420 MB