External SSDs have become essential tools for backups, file transfers, and portable storage. With USB 3.2, USB4, and Thunderbolt options available, speeds range from 1,000 to 4,000 MB/s in pocket-sized devices. This guide covers the best options for every need.
USB 3.2 External SSDs — Best Value
USB 3.2 Gen 2 (10 Gbps) external SSDs deliver up to 1,050 MB/s at affordable prices. The Samsung T7 Shield (IP65 rated, shock resistant) and SanDisk Extreme Portable SSD are our top picks for everyday portable storage. Both offer 1TB for around £80-100.
| Drive | Speed | Buy |
|---|---|---|
| Samsung T7 Shield 1TB | 1,050 MB/s | Check Price |
| SanDisk Extreme 1TB | 1,050 MB/s | Check Price |
USB 3.2 Gen 2×2 and USB4 — Maximum Speed
For video editors and photographers transferring large files, USB 3.2 Gen 2×2 (20 Gbps) and USB4 (40 Gbps) drives deliver 2,000-4,000 MB/s. The Samsung T9 and SanDisk Extreme Pro lead this category, with 2TB models around £150-200.
Thunderbolt External SSDs
Thunderbolt external SSDs offer the fastest speeds (up to 3,000+ MB/s) with consistent performance. The Samsung T7 Touch and LaCie Rugged SSD Pro (Thunderbolt 3) are top choices for Mac users and creative professionals.
Choosing Capacity
500GB: Sufficient for document backups and light photo storage. 1TB: The sweet spot for most users — enough for system backups, photos, and moderate video work. 2TB: Ideal for video editors, photographers, and those backing up large drives. 4TB: For professional media workflows with large project files.
Frequently Asked Questions
Are external SSDs reliable for backup?
Yes, far more reliable than external HDDs due to no moving parts. They withstand drops, vibration, and temperature better than mechanical drives.
USB-C or USB-A — which should I choose?
USB-C is future-proof and faster. All modern external SSDs include USB-C cables, with many including a USB-A adapter for older computers.
How long do external SSDs last?
With normal use, external SSDs last 5-10 years. Store them in a cool, dry place when not in use.
Find Compatible Upgrades
Use our compatibility guides to find the right parts for your system.
RAM Guide SSD GuideRecommended SSD Upgrades
How we verify this guide
Every compatibility figure here is checked against manufacturer specifications, official service manuals, and the standards that govern fit — memory type and speed (DDR4 / DDR5 / LPDDR5), maximum supported capacity and slot count, SSD form factor and interface (M.2 2280, NVMe PCIe vs SATA, keying), and charger wattage and connector (USB-C Power Delivery, GaN). We’re explicit about soldered or non-upgradeable parts, prioritise primary sources over retailer listings, and re-verify the data on a regular cycle. More on our method →
