So far so good on my 2017 iMac with macOS 10.13. Speeds seem pretty darn fast, I've switched from G-Dock ev Thunderbolt 2 which might actually be a bit faster - I'm only using JBOD so can't comment on RAID. One note: at the moment it seems that when you remove a drive in JBOD, both drives are removed and reinitialized (not reformatted), they just need to be remounted. A little annoying.
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10 TB External HDD Western Digital WD Elements Desktop, USB 3.0, black
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