MacBook is an older version from about 2015. Im having trouble with the storage space on MacBook. I need to know what memory disk to purchase in order to download up to date software. I currently have a SanDisk which is asking for trouble shooting I do not understand. I do not have flash drive at the moment.
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MacBook Air 13″, macOS 10.15
Here you go: Connect and use other storage devices with Mac - Apple Support
You can use literally any such device and there are a multitude of options from which to choose. If you don't know where to begin, start here: https://eshop.macsales.com/shop/external-storage/solutions, and if that list is too overwhelming just call them.
Since you referred to downloading "up-to-date" software, note that adding more storage to your MacBook Air will not change which versions of macOS the machine can run.
You can upgrade a MacBook Air (13-inch, Early 2015) to Monterey. You cannot upgrade it to Ventura or later.
How can I choose a memory disk for MacBook Air 2015 to download up-to-date software?
