Quick answer: For most people, the Corsair EX400U (~$119 for 1TB) is the best external SSD — USB4 speeds up to 4,000 MB/s without Thunderbolt pricing. Mac users editing video who want the absolute fastest option should get the LaCie Rugged SSD Pro5 (Thunderbolt 5, ~$329 for 2TB). If you just need cheap backup space and don’t need SSD speed, a traditional external hard drive like the WD My Passport is the better value.
Picks by Use Case
| Drive | Best For | Interface | Speed | Price |
|---|---|---|---|---|
| Corsair EX400U | Best overall value | USB4 | ~4,000 MB/s read | ~$119 (1TB) |
| Sharge Disk Pro | Best for travel (built-in hub) | USB 10 Gbps | ~1,000 MB/s read | ~$90 (2TB) |
| Samsung T7 Touch | Most secure (fingerprint unlock) | USB 3.2 Gen 2 | ~1,050 MB/s read | Varies |
| LaCie Rugged SSD4 | Best cross-platform (Win + Mac) | USB4 | ~4,000 MB/s read | Premium |
| LaCie Rugged SSD Pro5 | Fastest on Mac (Thunderbolt 5) | Thunderbolt 5 | ~6,700 MB/s read | ~$329 (2TB) |
| SanDisk Pro-G40 | Best Thunderbolt 3 compatibility | Thunderbolt 3 / USB | ~2,700 MB/s (TB) | Premium |
| WD My Passport (HDD) | Best budget/high capacity | USB 3.2 Gen 1 | ~120 MB/s | ~$120 (5TB) |
SSD vs. HDD: Pick the Right Type First
External SSD: faster, smaller, more durable (no moving parts), but more expensive per terabyte. Best for active work — editing video off the drive, running apps, or transferring large files frequently.
External HDD: slower, bulkier, cheaper per terabyte. Best for cold backup storage; you write to occasionally and rarely need it at high speed—think a once-a-week backup of your photo library.
The simple rule: if you’ll actively work off the drive, get an SSD. If it’s just sitting in a drawer as a backup, an HDD saves real money at higher capacities.
What Actually Matters When Comparing Specs
The interface determines your real-world speed ceiling. USB 3.2 Gen 2 tops out around 1,050 MB/s, USB4 can reach roughly 4,000 MB/s, and Thunderbolt 5 pushes past 6,000 MB/s—but only if your laptop’s port actually supports that standard. A Thunderbolt 5 drive plugged into a USB 3.2 port runs at USB 3.2 speeds, so check your own laptop’s ports before paying for speed you can’t use.
Advertised speeds are sequential, not everyday speeds. The big MB/s number on the box is measured transferring one large file in ideal conditions. Copying thousands of small files (like a photo library) will be noticeably slower than the headline number on any drive.
Sustained write speed matters more than burst speed for big transfers. Some drives use a fast cache that delivers quick speeds briefly, then drops sharply once that cache fills during a large, continuous transfer. If you regularly move 100GB+ video files, look specifically for a drive’s sustained write performance, not just its peak number.
Mac and Windows compatibility isn’t automatic. Some Thunderbolt drives (like the LaCie Rugged SSD Pro5) perform noticeably better on current Macs than on Windows USB4 ports, and some aren’t supported at all over older Thunderbolt 3 ports in Windows. If you switch between a Mac and a PC, check the drive’s cross-platform speed claims specifically, not just “compatible.”
Picking by Budget
Under $100: A drive like the Sharge Disk Pro covers everyday backup and transfer needs, especially if its built-in hub ports mean one less cable to carry.
$100-200: This is the sweet spot for most people. The Corsair EX400U delivers genuinely fast USB4 speeds without paying the Thunderbolt premium.
$300+: Only worth it if you specifically need Thunderbolt-class speed for professional video editing or large-file workflows—the LaCie Rugged SSD Pro5 is the one to get if that’s you.
Bottom Line
Most people don’t need Thunderbolt speeds—a solid USB4 drive like the Corsair EX400U covers backup, transfers, and even light video work at a fair price. Reserve the premium Thunderbolt drives for serious video editing workflows, and skip SSDs entirely in favor of a cheaper HDD if you just need bulk backup space you won’t touch often.
Pairing a new SSD with a laptop that’s short on ports? See our guide on the best USB-C hubs and docking stations in 2026. Pricing reflects US retail as of publication and may vary by retailer and capacity.
