While the new M4 Mac mini has impressed us all with its small size and processing prowess, a USB-C connectivity problem has been baffling many early adopters.
As spotted by AppleInsider, posts on several different forums by people who bought the Mac mini but have issues with connected USB-C devices. In many instances, the devices stop working or don’t work at all. Posts have appeared in the Apple Support Community, MacResource, and Reddit. The issue doesn’t appear to affect any of the other M4 Macs that were released at the same time.
One pattern that appears from the various postings is that users are connecting USB-A devices by using a USB-C adapter on a rear Thunderbolt/USB-C port. They experience inconsistent connectivity, but once they switch to a front USB-C port, the devices work properly. Some users report problems with devices that draw power from the rear ports. In some cases, disconnecting the device and then reconnecting it fixes the problem.
Read more at Macworld.com