I recently bought a Blac X Duet 5G for my Mac running El Capitan. Needless to say it does not work.
I had it replaced but still the same issue, the iMac just does not recognise the Blac X Duet 5G at all.
Thing is, it works perfectly on a Windows 10 machines so I know the issue is with the Mac not recognising the Blac X. So I take a perfectly good sata hard drive plug it into the drive bay and it comes up under Windows explorer just fine, but the mac does not recognise it at all.
My system is as follows:
iMac Retina 5K, 27-inch, Mid 2015)
OS X El Capitan version 10.11.6
I can see the USB 2.0Bus under the system report as well as USB 3.0 Bus.
Updated and it says no updates incase I try to see if there is an update.
I can see the Super Drive connected and I can connect any of my other usb drives and sticks to the iMac and they come up just fine.
SO, I am pretty sure its an issue with USB3 and the Mac not recognising it, but I can not find any drivers or solutions as to what to do.
ps Parallels 11 is totally shut down but even when its running I dont get the prompt to choose between Mac or W10.