USB-C describes the shape and style of a port on your computer and the connectors that you can plug into the port. USB-C ports look like this: Several different data transfer standards, like USB 3 and Thunderbolt 3, can flow through a USB-C port and connector. You can also connect your computer's AC power adapter to a USB-C port with a.

USB-C ports are reversible, so you don't have to worry about which side of the connector is up when you plug it in. These Mac computers have Thunderbolt 3 (USB-C) ports that support USB 3.1 Gen 2 and Thunderbolt 3: • iMac Pro (2017) • iMac (Retina 5K, 27-inch, 2017) • iMac (Retina 4K, 21.5-inch, 2017) • iMac (21.5-inch, 2017) • MacBook Pro (2016 and later) These Mac notebooks have USB-C ports that support USB 3.1 Gen 1: • MacBook (2015 and later) You can use your USB 3 devices with the above Mac models using an.

Try these tips if a USB 3 device doesn't activate or appear on the USB 3 bus: • Be sure you've installed the latest software updates available for your computer. To check, choose App Store from the Apple menu and see if any updates are available. • Sometimes unplugging and plugging the device back in can resolve the issue. • Try plugging the device into another USB port on the computer. • Check to see if a firmware update is available for your device from the manufacturer.

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• If the device came with an AC adapter, use it. • Restart your computer. Chatology for mac review. • Try a different USB 3 cable.

• Try a different USB 3 hub. Some USB 3 devices can generate radio frequency interference that can cause Wi-Fi and Bluetooth devices operating in the 2.4GHz band to have issues communicating with your computer. Here are some tips to avoid this issue: • If your USB device has a cable long enough that you can move the device, place it away from your Mac—and make sure not to place it behind your Mac, or near the hinge of its display. The antennas for Wi-Fi and Bluetooth are located there, and USB 3 devices placed there might interfere with your wireless connections.

• If you're using adapters or dongles on a Mac computer with Thunderbolt 3 (USB-C) ports, plug them into the front port on the left side of your Mac, or into the ports on the right side (if your computer has them). These ports are the farthest away from the antennas, making interference less likely. • To avoid interference on the 2.4GHz band using Wi-Fi, try using the 5GHz band instead. You can change this on your wireless base station. Bluetooth always uses 2.4GHz, so this alternative isn't available for Bluetooth.