Mac OS X users often need to use a USB pendrive that's compatible with other computers. In theory, this should be easy, but sometimes it can be problematic because the USB pendrive can be read by other devices but it's not possible to save files on it. Plug in your bootable USB device and boot up your 2018 2019 Macbook Pro from USB, hold the Command (⌘) key and you’ll see the startup disk screen, select the USB and boot it up. Caveats, notes and disclaimers. You need an uefi bootable image. (we’re uncertain of other workarounds for grub at this time). With a female Lightning port on one side, and a male USB-C connector on the other, the adapter will finally let you plug your iPhone 7-or-later EarPods into your MacBook (for a price of $30). It’s a bit steep for such a minor convenience, but more worth it if you happen to own one of the few pairs of pricier Lightning headphones like Beats.
USB port types and names
USB (Universal Serial Bus) is an industry standard for connecting computers and other devices. It's available with many types of ports, and each type has a unique shape. On Mac, USB is available with these ports, depending on your Mac model:
USB-A
Type USB-A ports are commonly called USB, USB 2, or USB 3 ports, depending on the USB specification they support. They aren't reversible, so a USB-A connector plugs into the port only when oriented correctly.
USB-C
Type USB-C ports are available on Mac as standard USB-C ports, Thunderbolt 3 ports, and Thunderbolt / USB 4 ports. They all look the same, and the connector plugs into the port in either orientation.
Learn more about identifying the ports on your Mac, as well as the adapters and cables you can use to connect older devices to type USB-C ports.
USB specificationsUsb Connector For Macbook Pro
USB specifications are important primarily when you want the most speed and power for your USB device, or your device needs more power or is using too much power. Every USB port supports a particular USB specification, which determines the port's maximum>USB specifications on MacData transferPower deliveryUSB 4Up to 10 GbpsUp to 15W at 5VUSB 3.1 Gen 2
Also known as USB 3.2 Gen 2 Up to 10 GbpsUp to 15W at 5VUSB 3.1 Gen 1 Also known as USB 3.2 Gen 1 or USB 3 Up to 5 GbpsUp to 900 mA at 5VUSB 2.0 Up to 480 MbpsUp to 500 mA at 5VUSB 1.1 Up to 12 MbpsUp to 500 mA at 5V
To learn which specification is supported by a type USB-A or type USB-C port on your Mac model:
Usb To Macbook AirGet the best performance from your USB devices
USB specifications all work with each other, but speed and power are limited by the cable or device that uses the earliest specification. For example, if you connect a USB 3 device to USB 2 port, your device is limited to USB 2 speeds, and it can't draw more power from the port than can be delivered over USB 2. In other words, to get the best performance, make sure that the USB port on your Mac and the USB cable to your device meet or exceed the USB specification of the device itself.
If your Mac doesn't recognize a USB device after you plug it into your Mac:
Macbook Pro Usb PortsLearn more
Check compatibility![]()
The Apple USB SuperDrive is compatible with Mac models from 2008 and later that don't have a built-in optical drive.
Connect and use your SuperDrive
To use your SuperDrive, connect it to a USB-A port on your Mac*, then insert a disc.Make sure that the aluminum enclosure of the SuperDrive is facing up.
To connect your SuperDrive to a Thunderbolt 3 (USB-C) or USB-C port on your Mac, you can use one of these adapters:
How To Use Usb In Macbook ProEject a discHow To Use Usb In Macbook Pro
To eject a disc, click Finder in the Dock, then choose File > Eject. Or, if your keyboard has an eject key, press and hold .
How To Use Usb In Macbook Air![]() Learn more
* If your SuperDrive doesn't respond when connected to an external display or USB hub, connect your SuperDrive to a USB port directly on your Mac.
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