Choose a portable SSD if you regularly carry files or make frequent transfers; choose a portable hard drive if you want a carryable backup with substantial capacity. A desktop hard drive suits an archive that stays at a desk, while network-attached storage (NAS) is worth considering when several household devices need shared access or scheduled backups and you can manage its setup. Before choosing any drive, decide whether it will hold an ordinary file copy or work with a specific Mac or Windows backup tool, because formatting and destination requirements differ.
If photos and household documents live on one laptop, an external drive can be a destination for regular backups. Microsoft Support says Windows File History can use an external drive or network location; choose a destination that also suits the backup tool you intend to use.
A portable drive makes sense when files need to travel with a laptop. If transfers are frequent, check the computer port and cable as well as capacity: Samsung says the T7 Shield's stated transfer performance requires a compatible USB 3.2 Gen 2 host, cable and UASP support.
NAS is an option when several computers or phones need access to central storage. Synology describes scheduled PC-folder backups for its DS224+; the setup also calls for compatible internal drives and a plan to back up the NAS itself.
Start with where the copy will live and how often you will update it; then check capacity, connections and the backup software you plan to use.
| Priority | What to check | Your needs |
|---|---|---|
| Recoverable copies | Choose which folders to copy, how often to update them and where the separate copy will be kept. Test restoring a few files. The UK National Cyber Security Centre advises against leaving a backup device permanently connected when an offline copy is intended to reduce ransomware exposure. | I want photos and documents I can recover if the laptop or its files are lost, not just extra space for the only copy. |
| Portability and transfers | Check the drive's size, connector, laptop port and cable. Which? distinguishes generally faster SSD transfers from HDDs used for long-term backup; a quoted maximum speed also depends on the supported connection. | My files travel with my laptop, or I copy a growing photo library often enough for transfer time to matter. |
| Archive capacity | Estimate the space needed for current files and future copies. Decide whether the drive must travel: Seagate lists portable Expansion hard drives up to 5 TB and positions Expansion Desktop for larger, desk-based storage. | A household photo and file archive is growing, but I can keep its storage in one place. |
| Several devices | For NAS, check compatible internal drives, network setup, supported device-backup features and a separate backup destination. Synology documents external devices, another NAS and cloud services as Hyper Backup destinations. | More than one computer or phone needs shared access or a regular route for copying files at home. |
| Backup compatibility | Check the intended operating system, file format and backup utility before formatting a disk. Apple prefers APFS or APFS Encrypted for a Time Machine disk; Seagate cautions against using exFAT for built-in tools such as Time Machine and File History. | I need the drive to work with my actual Mac or Windows backup routine, rather than only move ordinary files between computers. |
Moving photos off a full laptop frees space, but it does not leave a second copy. The UK National Cyber Security Centre describes a backup as a copy of important data kept in a separate safe location.
Identify the folders to protect, make the first copy and try restoring several photos and documents before relying on the routine.
Seagate says exFAT can serve ordinary Mac and Windows file exchange but is not recommended for File History or Time Machine. Apple prefers APFS or APFS Encrypted for a Time Machine disk.
Decide whether the disk is for file exchange or a particular backup tool before formatting it. Keep another copy of existing files before changing its format.
Reformatting can erase data already on the disk.
Samsung says the T7 Shield's stated maximum sequential speeds require a compatible USB 3.2 Gen 2 host and cable with UASP support.
Check the laptop port and cable against the exact SSD's connection requirements if transfer speed is a reason for choosing it.
Central access does not make the files on one NAS an independent second copy. Synology documents backup destinations beyond the NAS itself, including external devices and another NAS.
Check the enclosure's compatible internal drives, plan its network setup and choose a separate destination for recoverable backups. If Macs will use Time Machine, confirm support for the exact NAS configuration.
A NAS setup also requires compatible internal drives; a separate backup destination may require further equipment or a service.
Samsung's portable T7 Shield SSD is a reference point for compact storage used for repeated transfers.
Seagate's Expansion range provides both portable hard drives and desk-based external hard drives for local copies.
Synology's DS224+ is a NAS reference for central household files and scheduled PC-folder backups.
These portable SSDs and hard drives are options for carrying a photo library or keeping a laptop backup copy. Choose between them using the capacity you need, your computer's connection and the format required by your backup routine.
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A portable option for repeated photo transfers when the computer supports its USB 3.2 Gen 2x2 connection. The product name advertises read and write speeds of up to 2000MB/s; check the host connection for that speed and confirm the drive's format suits your backup tool.
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This 1TB portable SSD is an option for a copy that travels with a laptop. Its name specifies USB Type-C 3.2 Gen 2; check the host and cable for the intended connection, and confirm the disk format before using a built-in backup utility.
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This portable hard drive suits a sizeable photo and file copy that needs to move with a laptop. The listing describes Windows 10+ use as requiring a downloadable HFS+ driver; check that arrangement and the support for your chosen backup utility before buying.
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The 4 TB capacity makes this portable SSD an option for a larger photo library that still needs to travel. Its name specifies USB Type-C 3.2 Gen 2; confirm the disk format for your intended backup tool, and do not treat it as water-resistant.
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This 4TB portable hard drive is an option for carrying a sizeable copy of photos and documents. The product name specifies USB 3.0; confirm its supplied format and any reformatting needed for your Mac or Windows backup routine before putting files on it.
Yes, exFAT can be used for ordinary file exchange between modern Macs and Windows computers, according to Seagate. That does not make it the right format for a built-in backup tool: Seagate cautions against exFAT for File History and Time Machine, while Apple prefers APFS or APFS Encrypted for a Time Machine disk.
Yes. Microsoft Support says File History can make regular backups to an external drive or network location once configured. Check that the folders containing your photos and documents are included, then try restoring a file.
No. A NAS can centralise files and run backup tasks, but files held only on that NAS still need a separate copy. Synology lists external devices, another NAS and cloud services as Hyper Backup destinations; choose a destination you can restore from.
No, not if its purpose is to remain an offline copy. The UK National Cyber Security Centre advises against keeping the device containing that backup permanently connected as a way to limit ransomware exposure. Plan when to connect it for updates and check that you can restore the files.
The displayed figure can differ because the drive label and operating system use different measurement standards. Seagate explains that drive capacity is labelled in decimal bytes; formatting and other functions can also use some space.