If the cable is worn out or does not fit properly with the drive, use a different appropriate cable. Try to use the same drive on a different computer and see if it works or not. Sometimes the problem may lie in the loose or faulty cable. You may also take a moment to make sure the port on the external drive is free from dirt and debris. Use a soft dry brush or cloth to clean Mac’s USB ports carefully.

Check the box for Hard disks, External disks, etc.Be in Finder, and at the top menu bar, click Finder → Preferences.To ensure that external drives can appear on the desktop: You may perform this two-three times and wait for a few seconds to see if the drive shows up on your Mac’s desktop. If you are using a USB hub on newer Macs, try the other USB-C port and other ports on the hub too. You may have already tried this, but if not, unplug the external drive from Mac’s USB port and plug it into a different one.

Several times it is the minor problems that might appear significant. See if the USB drive shows in System Information.

Delete unnecessary and conflicting apps.

Quit and relaunch apps that use the USB drive.

Thus, if your Mac’s USB port isn’t working, it will end up affecting your work and productivity too.īut don’t worry! Here are all the tested solutions to fix the USB ports not working issue on your Mac. Even in the age of cloud storage, we heavily depend on Mac’s USB ports to connect storage devices and other peripherals like mouse and keyboards.

Mac not detecting usb keyboard