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- The best external hard drive and SSD in 2020 for Mac, PC, PS4 and Xbox. Need a backup option - or just more space? Here are our top picks for external storage options.
- Storage devices (such as external hard drives) can also be available on your network. Additionally, you can insert flash memory cards from your camera or other device in the SDXC card slot in your Mac. If your Mac doesn’t have a card slot, you can access the data.
- The LaCie Rugged Pro is the fastest SSD we've tested. LaCie's Rugged drives have been popular with Mac users for many years, thanks to their combination of high-performance and that now-familiar.
Optimized Storage in macOS Sierra and later* can save space by storing your content in iCloud and making it available on demand. When storage space is needed, files, photos, movies, email attachments, and other files that you seldom use are stored in iCloud automatically. Each file stays right where you last saved it, and downloads when you open it. Files that you’ve used recently remain on your Mac, along with optimized versions of your photos.
* If you haven't yet upgraded to macOS Sierra or later, learn about other ways to free up storage space.
Find out how much storage is available on your Mac
Choose Apple menu > About This Mac, then click Storage. Each segment of the bar is an estimate of the storage space used by a category of files. Move your pointer over each segment for more detail.
Click the Manage button to open the Storage Management window, pictured below. This button is available only in macOS Sierra or later.
Manage storage on your Mac
The Storage Management window offers recommendations for optimizing your storage. If some recommendations are already turned on, you will see fewer recommendations.
Store in iCloud
Click the Store in iCloud button, then choose from these options:
- Desktop and Documents. Store all files from these two locations in iCloud Drive. When storage space is needed, only the files you recently opened are kept on your Mac, so that you can easily work offline. Files stored only in iCloud show a download icon , which you can double-click to download the original file. Learn more about this feature.
- Photos. Store all original, full-resolution photos and videos in iCloud Photos. When storage space is needed, only space-saving (optimized) versions of photos are kept on your Mac. To download the original photo or video, just open it.
- Messages. Store all messages and attachments in iCloud. When storage space is needed, only the messages and attachments you recently opened are kept on your Mac. Learn more about Messages in iCloud.
Storing files in iCloud uses the storage space in your iCloud storage plan. If you reach or exceed your iCloud storage limit, you can either buy more iCloud storage or make more iCloud storage available. iCloud storage starts at 50GB for $0.99 (USD) a month, and you can purchase additional storage directly from your Apple device. Learn more about prices in your region.
Optimize Storage
Click the Optimize button, then choose from these options.
- Automatically remove watched movies and TV shows. When storage space is needed, movies or TV shows that you purchased from the iTunes Store and already watched are removed from your Mac. Click the download icon next to a movie or TV show to download it again.
- Download only recent attachments. Mail automatically downloads only the attachments that you recently received. You can manually download any attachments at any time by opening the email or attachment, or saving the attachment to your Mac.
- Don't automatically download attachments. Mail downloads an attachment only when you open the email or attachment, or save the attachment to your Mac.
Optimizing storage for movies, TV shows, and email attachments doesn't require iCloud storage space.
Empty Trash Automatically
Empty Trash Automatically permanently deletes files that have been in the Trash for more than 30 days.
Reduce Clutter
Reduce Clutter helps you to identify large files and files you might no longer need. Click the Review Files button, then choose any of the file categories in the sidebar, such as Applications, Documents, Music Creation, or Trash.
You can delete the files in some categories directly from this window. Other categories show the total storage space used by the files in each app. You can then open the app and decide whether to delete files from within it.
Learn how to redownload apps, music, movies, TV shows, and books.
Where to find the settings for each feature
The button for each recommendation in the Storage Management window affects one or more settings in other apps. You can also control those settings directly within each app.
- If you're using macOS Catalina, choose Apple menu > System Preferences, click Apple ID, then select iCloud in the sidebar: Store in iCloud turns on the Optimize Mac Storage setting on the right. Then click Options next to iCloud Drive: Store in iCloud turns on the Desktop & Documents Folders setting. To turn off iCloud Drive entirely, deselect iCloud Drive.
In macOS Mojave or earlier, choose Apple menu > System Preferences, click iCloud, then click Options next to iCloud Drive. Store in iCloud turns on the Desktop & Documents Folders and Optimize Mac Storage settings. - In Photos, choose Photos > Preferences, then click iCloud. Store in iCloud selects iCloud Photos and Optimize Mac Storage.
- In Messages, choose Messages > Preferences, then click iMessage. Store in iCloud selects Enable Messages in iCloud.
- If you're using macOS Catalina, open the Apple TV app, choose TV > Preferences from the menu bar, then click Files. Optimize Storage selects “Automatically delete watched movies and TV shows.”
In macOS Mojave or earlier, open iTunes, choose iTunes > Preferences from the menu bar, then click Advanced. Optimize Storage selects “Automatically delete watched movies and TV shows.” - In Mail, choose Mail > Preferences from the menu bar, then click Accounts. In the Account Information section on the right, Optimize Storage sets the Download Attachments menu to either Recent or None.
Empty Trash Automatically: From the Finder, choose Finder > Preferences, then click Advanced. Empty Trash Automatically selects “Remove items from the Trash after 30 days.”
Other ways that macOS helps automatically save space
With macOS Sierra or later, your Mac automatically takes these additional steps to save storage space:
- Detects duplicate downloads in Safari, keeping only the most recent version of the download
- Reminds you to delete used app installers
- Removes old fonts, languages, and dictionaries that aren't being used
- Clears caches, logs, and other unnecessary data when storage space is needed
How to free up storage space manually
Even without using the Optimized Storage features of Sierra or later, you can take other steps to make more storage space available:
- Music, movies, and other media can use a lot of storage space. Learn how to delete music, movies, and TV shows from your device.
- Delete other files that you no longer need by moving them to the Trash, then emptying the Trash. The Downloads folder is good place to look for files that you might no longer need.
- Move files to an external storage device.
- Compress files.
- Delete unneeded email: In the Mail app, choose Mailbox > Erase Junk Mail. If you no longer need the email in your Trash mailbox, choose Mailbox > Erase Deleted Items.
Learn more
- The Storage pane of About This Mac is the best way to determine the amount of storage space available on your Mac. Disk Utility and other apps might show storage categories such as Not Mounted, VM, Recovery, Other Volumes, Free, or Purgeable. Don't rely on these categories to understand how to free up storage space or how much storage space is available for your data.
- When you duplicate a file on an APFS-formatted volume, that file doesn't use additional storage space on the volume. Deleting a duplicate file frees up only the space required by any data you might have added to the duplicate. If you no longer need any copies of the file, you can recover all of the storage space by deleting both the duplicate and the original file.
- If you're using a pro app and Optimize Mac Storage, learn how to make sure that your projects are always on your Mac and able to access their files.
When Apple introduced its MacBooks with built-in flash storage that starts at just 128 gigabytes, the question became: “Is 128GB enough for me?”
Tough question. The answer in most cases? Probably. And maybe it’s even more than enough. But it might be far too little, too. Here’s how to figure it out:
Do you take a lot of photos? A lot of video?
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If you take a lot of photos and video and store them on your hard drive, find out how many gigabytes (GB) they take up. In iPhoto, you can select your events or photos and click on the View menu to “Get Info.” You should be able to see how many photos you have total and the storage space they take up. If you’re using Apple’s newer Photos app, you can find out how much storage space your photos and video take up by opening Photos, then clicking on the Photos menu at the top left, choosing Preferences, then clicking on the General selection. Click the Show in Finder button, which will show you your Photos Library. Make sure this library file is selected, then go to the top left of your screen and choose File, then Get Info. The resulting window will show you the size of your Photos library.
I have more than 24,000 photos and videos that take up 230GB of storage space.
So is 128GB enough for me? No way.
Most people have far less photos, though.
It is possible to offload photos to a fast external hard drive or one of the cost-effective USB 3.0 flash “thumb” drives, which now store up to 256GB at reasonable prices — check out, “Best External Hard Drive for Macs, Plus 256GB Flash Drives” for more detail.
You can even store your iPhoto or Photos library on a connected hard drive. I don’t like to, though. I prefer the simplicity of keeping it all on one drive, in my MacBook Pro, which also makes it easier to backup. Downside is, Apple’s move to super-fast solid-state hard drives (flash storage) means that the company is stingy with its drive space in its entry-level models.
What’s worse is that it’s not easy to upgrade SSDs like old-school (slower) hard drives.
Alert: B&H has a crazy good deal on an Apple 15.4″ MacBook Pro with 256GB of storage — save a whopping $800 on Black Friday only!
What about Apple’s iCloud for storage?
Another option is to upgrade your iCloud storage and store all your photos in iCloud with optimized smaller images on your MacBook. This is a great service, but you’ll pay every month. For me, that’s $9.99 a month, which is $120 a year . . . forever. And if I ever have trouble accessing my iCloud account, I’m not sure I’ll be able to navigate Apple’s security hoops — or that family or loved ones will be able to if, say, I were hit by a bus.
Should I spend more and get 256GB or 512GB instead?
Again, tough question. The price leap into 256GB to a new MacBook Pro or MacBook Air is a good idea for regular people (non-professionals) in these three situations:
- You have a lot of photos and video . . . and you’ll likely be taking more photos and video.
- You don’t like the idea of sorting and storing photos and video on external hard drives.
- You have a lot of movies or TV shows and you want them easily available because you don’t have fast Internet access for streaming or downloading.
The good news is, new Thunderbolt and USB-C hard drives are wicked fast — and good USB 3.0 drives are nearly as fast — both which will ease your photo access and transfer pain. Still, it’s not as portable, and you’ll have to pay attention to what, where, and how you’re storing your files. To me, the ease of management is worth a couple hundred dollars over the course of my usual 3-to-4-year MacBook Pro lifespan between upgrades.
If you have a MacBook Air or Pro that has run out of storage, don’t despair — OWC may have an upgrade kit for your MacBook model.
Macbook Flash Storage Vs Ssd
If you find yourself with a MacBook Air or MacBook Pro that has run out of storage and you simply need more, don’t despair — Other World Computing (OWC) has upgrade kits for the MacBook Air and MacBook Pro that you can use to upgrade your built-in storage. It’s not exactly difficult but it’s not exactly easy, either. Any time you crack your case you run the risk of accidentally breaking something important or expensive. Fortunately, OWC includes the tools you need for opening your MacBook and installing new storage. Plus, you’ll get a handy enclosure for your old SSD storage, giving you a sweet little external drive.
Update: Transcend is now offering upgrade kits for some MacBook Air and MacBook Pro models — but none are available for the newest MacBook models yet.
What About Using Your SDXC Card Slot for More Mac Storage?
If you want more on-board, nearly built-in storage, you have two cool options, both of which are tiny flash-based drives in the shape of camera memory cards. They plug into the SDXC card slot on your older generations of MacBook Air or MacBook Pro — the newest MacBooks and MacBook Pros no longer have SDXC card slots. They only have USB-C ports.
The TarDisk Pear system is a tiny drive that you can combine with your built-in drive to create a single “fused” storage system on your MacBook Air or Pro.
For all intents and purposes, the Transcend JetDrive Liteacts like a little USB thumb drive — but it fits flush into the SDXC card slot instead and appears on your Mac like an external drive that is always on, always available. It appears as a separate storage option to your Mac’s operating system. Quite handy.
The TarDisk Pear system, on the other hand, also uses the SDXC card slot but it combines with your built-in storage to form a single “fused” drive. If you want a near-permanent — but easy storage solution for your MacBook Air or Pro, the TarDisk Pear system might be your best bet.
Of course, if you use your SDXC card slot for loading photos, you can pick up a small USB-based card reader like the Kingston Digital MobileLite G4 Card Reader to easily load photos and video off of your SD camera cards through a USB port.
Final 128GB Recommendation?
If you will start taking a lot of photos and video — especially if you use an iPhone 6 or 7 that lets you do things like shoot HD video at 60fps — spend the $200 extra to bump yourself up into the next model of MacBook Air, MacBook, or MacBook Pro and get 256GB of storage. If you buy from a third-party (like B&H) that often offers a slight discount and free shipping, you can lower the total cost at time of purchase to help offset the hit to your budget. For instance, at a third-party online store like B&H, you can often get into a 13-inch MacBook Pro with Retina display or with Touch Bar with 256GB of storage for about $100 less than Apple’s price and only about $100 more than Apple’s 128GB version. If you consider drive time and fuel to get to an Apple store, along with B&H’s free shipping and the likelihood that you won’t be charged sales tax . . . suddenly you might get the savings you need to get into the right MacBook for you.