[corywright]

> Tried 5 dongles, none can hold a drive reliably under heavy use

This is something I've had a problem with as well on my late 2016 13" MBP, 2 usb-c port model. I have two external drives that I sync via rsync occasionally (1 local, 1 offsite). No matter what type of dongle I use, one of the disks always ejects shortly after beginning the rsync. Even with the Apple dongle, when I plug in one of the external disks via usb-a, and plug my usb-c power to the dongle, then plug in the 2nd external disk directly to the only other usb-c on the mac, it fails every time.

What I have been doing instead is unplugging the power cord and syncing the disks while running on battery. This seems to work, but the odd thing here is that about 50% of the time when I do this I lose my wifi connection as soon as I begin the rsync from disk to disk. Nothing I can do makes the network work again until after I unmount the external disks.

Having only two ports on the computer, one of which is also used for power, has turned out to be far more annoying than I imagined.