WD My Passport for Mac 4TB -- Best Plug-and-Play Pick
WD ships this drive pre-formatted for macOS in HFS+ Journaled, so Time Machine recognizes it immediately without any reformatting. The drive includes hardware AES 256-bit encryption managed through WD's macOS utility. At 4TB, it holds a full Time Machine history for most MacBook Air and MacBook Pro users for a year or more. The USB-C cable works natively with M-series Mac ports, and a USB-A adapter is included for older machines. Weight is under 130 grams, light enough for a daily bag.
Check price on Amazon →Find the right Mac backup drive whether you use Time Machine, Carbon Copy Cloner, or cloud sync. Five picks covering portability, speed, and desktop capacity for macOS users.
Mac users have one advantage many Windows users lack: Time Machine is built into macOS and starts backing up automatically once you connect a compatible drive. The challenge is picking the right drive for your workflow. The options below cover portable SSDs for MacBook users, high-capacity desktop drives for Mac Studio or iMac setups, and a NAS option for households with multiple Apple devices.
| Product | Best For | Rating |
| — | — | — |
| WD My Passport for Mac 4TB | Time Machine out of the box | 4.6/5 |
| Samsung T7 2TB | Speed on MacBook Pro | 4.7/5 |
| G-Technology ArmorATD 2TB | Rugged portability | 4.5/5 |
| LaCie d2 Professional 8TB | Desktop Mac workstations | 4.7/5 |
| Synology DS223 NAS | Multiple Macs, Time Machine server | 4.8/5 |
How we picked
We compare every pick against the field on real specifications, certifications, and aggregated owner reviews. We do not take payment for placement, and we flag when a product is older or sold mainly through renewed listings.
Top picks compared
| Pick | Best for | Score | |
|---|---|---|---|
| WD My Passport for Mac 4TB -- Best Plug-and-Play Pick | Check price | ||
| Samsung T7 2TB -- Fastest Portable Backup | Check price | ||
| G-Technology ArmorATD 2TB -- Best Rugged Mac Drive | Check price | ||
| LaCie d2 Professional 8TB -- Best Desktop Mac Backup | Check price | ||
| Synology DS223 NAS -- Best for Multi-Mac Homes | Check price |
Our picks up close
WD My Passport for Mac 4TB -- Best Plug-and-Play Pick
WD ships this drive pre-formatted for macOS in HFS+ Journaled, so Time Machine recognizes it immediately without any reformatting. The drive includes hardware AES 256-bit encryption managed through WD's macOS utility. At 4TB, it holds a full Time Machine history for most MacBook Air and MacBook Pro users for a year or more. The USB-C cable works natively with M-series Mac ports, and a USB-A adapter is included for older machines. Weight is under 130 grams, light enough for a daily bag.
Samsung T7 2TB -- Fastest Portable Backup
For MacBook Pro users who back up large projects, the Samsung T7's 1,050 MB/s read speed over USB 3.2 Gen 2 is a meaningful upgrade over spinning drives. macOS formats it as APFS automatically during Time Machine setup. The compact aluminum housing stays cool even during long transfers. At 2TB, it suits users whose primary drives are 1TB or smaller. The five-year limited warranty from Samsung is among the best coverage in the portable SSD category.
G-Technology ArmorATD 2TB -- Best Rugged Mac Drive
G-Technology has built drives specifically for Apple users for over a decade. The ArmorATD is a portable drive rated IP67 for dust and water immersion, with a crush rating of 1,000 pounds. It ships formatted for Mac and works with Time Machine immediately. Transfer speeds are around 130 MB/s, standard for a portable spinning drive. The textured rubber exterior grips well in a bag and resists scratches. A good option for photographers and videographers who work outdoors.
LaCie d2 Professional 8TB -- Best Desktop Mac Backup
The d2 Professional is a desktop drive built for Mac workstations. It uses a 7200 RPM Seagate IronWolf Pro mechanism, which sustains higher transfer rates than the 5400 RPM drives common in portable units. The Thunderbolt 3 port enables speeds up to 240 MB/s on compatible Macs, and a USB-C port provides compatibility with everything else. At 8TB, it comfortably backs up a Mac Pro, iMac, or Mac Studio with full Time Machine history and archived project files.
Synology DS223 NAS -- Best for Multi-Mac Homes
A Synology NAS running the latest DSM software can serve as a Time Machine destination for multiple Macs simultaneously. Each Mac sees its own Time Machine volume, and RAID 1 mirroring across two drives provides redundancy within the device itself. You can access files remotely via Synology's apps, set backup schedules per device, and expand storage by swapping drives for larger ones. The DS223 requires purchasing two hard drives separately, but the total cost remains competitive with buying individual drives for each machine.
Before you buy
What to consider
The most important factor is format compatibility. Drives pre-formatted for Mac (HFS+ or APFS) work immediately with Time Machine; drives formatted for Windows need reformatting first. Match capacity to your Mac's internal drive size: a 4TB backup drive works well for Macs with up to 2TB internal storage. If portability matters, a portable SSD like the Samsung T7 is lighter and more shock resistant than a spinning drive. Desktop Macs benefit from a high-speed Thunderbolt drive for faster full restores. If your household has two or more Macs, a NAS with Time Machine support eliminates the need to manage separate backup drives for each machine.
What to consider
For related reading, check out our picks for [best computer backup devices](/articles/best-computer-backup-devices) covering cross-platform options, or see [best compact android phone](/articles/best-compact-android-phone) if you also need mobile backup solutions. Learn how we evaluate products on our [methodology](/methodology) page.
Quick answers
Time Machine works with most external drives formatted as HFS+ or APFS. Drives formatted as exFAT or NTFS require reformatting first. Simply plug in the drive, and macOS will prompt you to use it with Time Machine. NAS devices can also work with Time Machine if they support SMB with Time Machine Advertising enabled.
Time Machine is convenient and built directly into macOS, making it the easiest starting point. Third-party tools like Carbon Copy Cloner or SuperDuper offer bootable clones, which Time Machine does not. For most users, running Time Machine alongside a periodic bootable clone gives both incremental restore capability and a full-system recovery option.
Tom Reeves has reviewed consumer electronics for over a decade, with a focus on televisions, monitors, laptops, and smart home devices. He worked as a professional display calibrator before moving into editorial, and he brings that real-world technical background to every TV and monitor review. At TheTestedHub, Tom covers display calibration, computer monitors, laptops and 2-in-1s, smart home platforms, home theater setups, and HDR performance.