Make sure your mac is connected to the external storage device (for example, using a usb cable or over a network). How to upgrade storage on macbook pro and air. Pin On Top 10 Best Hyperdrive Usb Type-c 5-in-1 Hub In 2018 Use external storage devices with mac external hard drives, thumb drives, usb drives, flash memory cards, and devices like ipod are examples of storage devices that you can connect to your mac using thunderbolt, usb, or firewire cables, or connect wirelessly using bluetooth the easiest way is to open two finder windows, one for your mac and one for your flash drive, and. How to use a flash drive on a macbook air . If it’s a printer or some other peripheral, you will have to set it up using the 'system preferences panel.' you will find this by clicking on the apple logo on your home screen. If it is only a storage device, you will see it registered as an external drive in your macbook. Offload the data and copy it multiple places. Open 'finde...