Easy, connect it via USB , format it for Mac OSX extended journaled in DISK UTILITY

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• How To Backup Mac With Seagate Backup Plus Slim
• How To Backup Mac With Seagate Slim

then you can drag and drop files to it

Seagate external hard drive How to set up on Mac macOS Mac OS X Seagate Backup Plus Slim 1TB 2TB Sierra,Mojave Please Subscribe my Channel: https://www.yout. These USB-C hard drives for Mac can back up or beef up your storage Here are our favorite USB-C hard drives for your Mac, because USB-C is the future. Grabbing an external hard drive is a great way to store backups, music, movies, files, and more! The first backup may take a long time, but you can continue using your Mac while a backup is underway. Time Machine only backs up the files that have changed since the previous backup, so future backups will be faster. To start a backup manually, choose Back Up Now from the Time Machine menu in the menu bar. Use the same menu to check the.

or use it as a time machine backup

Go to menu bar on top

Finder > Go > Utilities > DISK UTILITY

go to DISK UTILITY

Format (erase) it in 'mac osx Extended journaled'

see from mine below, HD on left selected, .......ERASE tab highlighted.... and middle right roughly, it says 'MAC OSX EXTENDED JOURNALED'

thats the format, but yours may be different of course

bottom right ERASE tab lets you erase/ FORMAT your external as you like (remember this erases all data ON THE HD!)

highlighted in RED Erase.......format (middle) ...........erase ACTION to Erase/Format (bottom)

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To show your new HD on desktop

go into FINDER at top then PREFERENCES then GENERAL tab

How To Backup Mac With Seagate Backup Plus Slim

How To Backup Mac With Seagate Slim

then check 'hard disks' and 'external disks'