external ssd vs cloud storage for a macbook air
by sumit paul · last updated
an external ssd is the better choice for a macbook air when you need speed without an internet connection: editing high-bitrate video like prores, working on trains and planes, or moving hundreds of gigabytes at once. cloud storage wins when you don't want to carry or manage a drive, need more space than one drive holds, or want a copy that survives a lost bag. many people end up using both: the ssd for the current project, the cloud for everything else.
side by side
| external ssd | cloud storage (google drive, dropbox, icloud) | |
|---|---|---|
| works offline | yes | only files you've marked or downloaded for offline use |
| speed | set by the drive and port: a typical usb-c ssd is rated around 1,000 MB/s | set by your internet connection: 100 Mbit/s is about 12.5 MB/s |
| capacity | fixed; buy another drive when it's full | whatever plan you pay for; upgrade without new hardware |
| something to carry | yes, plus a cable | no |
| if it's lost or dies | data is gone unless backed up | still in your account |
| access from other devices | plug it in | any device, any browser |
| cost | one purchase | a subscription |
| privacy | on your desk; turn on encryption when formatting | on the provider's servers unless you encrypt it yourself |
when an external ssd wins
you edit high-bitrate video
apple's prores white paper puts 4k prores 422 hq at 30 frames per second at about 884 Mbit/s, roughly 110 MB/s. a usb-c ssd handles that easily, several streams at once. very few home internet connections can, so editing that footage straight from the cloud means waiting or working through proxies. if you shoot prores on an iphone or camera, an ssd is the practical place to put it while you edit. apple even notes that iphone prores files can be up to 30 times larger than hevc.
you work offline
flights, trains, client sites with bad wi-fi. an ssd doesn't care. cloud apps can keep some files offline (google drive for desktop has "available offline", dropbox has "make available offline"), but those files then sit on your mac's own disk, which is the space you were trying to save.
you move a lot of data at once
copying a 500 GB shoot to an ssd takes minutes. uploading it to the cloud on a 50 Mbit/s upload takes the better part of a day. if you dump cards every day, that difference adds up.
when cloud storage wins
you don't want to carry anything
a macbook air is bought to be light. an ssd in the bag is small, but it's one more thing to forget, drop or leave plugged into a client's monitor. unplugging without ejecting can also corrupt what was being written.
you need more than one drive's worth
an ssd has a ceiling. when it's full you buy another, then track which drive holds what. cloud space grows with the plan, and search works across all of it.
you want a copy that survives
an ssd is a single copy unless you back it up. a stolen bag takes the laptop and the drive together. files in the cloud are still there.
the catch with "online-only" cloud files
google drive for desktop in stream mode, dropbox's online-only files and icloud drive's optimize mac storage all keep files in the cloud until you open them. then they download the whole file and usually keep the copy. open a 40 GB video and you need 40 GB free, and a long wait first. for documents that's fine. for video it often isn't.
a streaming drive works differently. feather drive mounts google drive and dropbox in finder and fetches only the parts of a file an app reads, so a big video starts in about a second and doesn't land on your disk. in a side-by-side test it opened a 1.22 GB video in 1.7 s; google drive for desktop took 1 min 44 s because it downloaded the whole file first. it's honest to say what it isn't: it needs an internet connection to open files, so it's no help on a plane. it needs macos 26 or later, covers google drive and dropbox only, and only sees files you put in it rather than your whole drive. it's a paid app with a 3-day free trial. google's and dropbox's own apps are free, cover your whole account and support offline files.
if you buy an ssd for a macbook air
- port: macbook airs with apple silicon have thunderbolt / usb 4 ports, so any usb-c ssd runs at its full rated speed. on a macbook neo, use the usb 3 port (up to 10 Gbit/s); the other port is usb 2, which is far slower.
- format: open disk utility, select the drive, click erase. choose apfs if it's mac only, apfs (encrypted) if it travels, exfat if it also has to work on windows. erasing deletes everything on it.
- video apps: final cut pro wants its library on apfs (or mac os extended), not exfat. see final cut pro on an external drive.
- eject: drag the drive to the trash in finder, or click the eject button in the sidebar, before unplugging.
- back it up: an ssd is a working drive, not a backup. copy what matters to the cloud or a second drive.
a setup that uses both
- the project you're working on this week: on the ssd, so it's fast and works offline.
- finished projects, archive and big files you only open now and then: in the cloud, opened on demand.
- your mac's own disk: apps, the system and the small files you touch every day.
if you're still deciding how much internal storage to buy, read is 256 gb enough on a macbook first.
related
- how to get more storage on your mac without buying a new one
- is 256 gb enough on a macbook?
- how much storage do you need for video editing on a mac
- how to open any file from the cloud on a mac without downloading it
common questions
what format should an external ssd be for a macbook air?
apfs if you only use it with macs. exfat if it also has to work with windows pcs. you can reformat it in disk utility, which erases the drive.
is an external ssd fast enough to edit video on a macbook air?
yes for most footage. a usb-c ssd on a 10 Gbit/s port is far faster than even 4k prores 422 hq needs, so you can edit straight from it.
is cloud storage fast enough instead of an external ssd?
for documents, photos and compressed video, often yes, if your connection is fast and steady. for high-bitrate formats like prores, most home connections are too slow, so you edit through proxies or keep the current project on an ssd.
can i use an external ssd and cloud storage together?
yes, and many people do: the ssd for the project you're working on now, the cloud for everything finished. that also gives you a second copy, which an ssd alone doesn't.
does an external ssd work on the macbook neo?
yes. use the usb 3 port, which runs at up to 10 Gbit/s; the other port is usb 2 and much slower. apple's guide for the macbook neo shows which is which.