Fusion Drive is our breakthrough storage option that combines a high-capacity hard drive with high-performance flash storage. Fusion Drive intelligently manages your data so that frequently used apps, documents, photos, and other files stay on the faster flash storage, while infrequently used items move to the hard drive. You’ll enjoy shorter boot times, and as the system learns how you work, you’ll experience faster application launches and quicker file access.
Up to 1TB of flash storage.
For maximum performance, you can configure iMac with up to 1TB of flash storage (up to 512GB on the 21.5-inch iMac) instead of a traditional hard drive.1 This flash storage delivers up to 5x the performance of a traditional drive2 — speed you’ll notice when you start up your iMac, launch an app, or browse your photo library.
Up to a 3TB hard drive.
Go ahead and take all the photos, buy all the music, and shoot all the video you want. A 1TB hard drive comes standard, with the option to upgrade to a massive 3TB hard drive.1