Corsair EX400U 2TB
Score: 74/100
Amazon Basics 2TB External SSD
Score: 79/100Rankings
The Amazon Basics 2 TB Portable SSD delivers flagship-class speeds in a rugged, IP65-rated metal case while staying ultra-light. It offers great value but real-world performance may vary and it lacks advanced security features.
The Corsair EX400U is an ultra-compact USB4 SSD delivering some of the fastest portable read speeds on the market and a unique MagSafe feature for iPhone creators, though it lacks ruggedness and full write-speed potential.
| Attribute | | |
|---|---|---|
2,048 GBbest | 2,000 GB | |
4,000 MB/sbest | 2,000 MB/s | |
3,600 MB/sbest | 2,000 MB/s | |
3 yearsbest | 1 years | |
| ↓ lower better | 92 g | 53.01 gbest |
| ↓ lower better | 11.9 mm | 9.9 mmbest |
| ↓ lower better | 64.3 mm | 59.2 mmbest |
| ↓ lower better | 64 mm | 59.2 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance(3) | ||
Interface | USB4 | USB 3.2 Gen 2 (USB-C) |
Sequential Read Speed (MB/s) | 4000 MB/s | 2000 MB/s |
Sequential Write Speed (MB/s) | 3600 MB/s | 2000 MB/s |
Warranty & Support(1) | ||
Warranty Period (years) | 3 years | 1 years |
Compatibility(1) | ||
Supported Operating Systems | Windows, macOS, iOS | Windows, macOS, Android, iOS, others |
Storage(1) | ||
Storage Capacity (GB) | 2048 GB | 2000 GB |
Power(1) | ||
Power Source | USB-C PD | USB |
Build & Design(4) | ||
Weight (g) | 92 g | 53.01 g |
Thickness (mm) | 11.9 mm | 9.9 mm |
Length (mm) | 64.3 mm | 59.2 mm |
Width (mm) | 64 mm | 59.2 mm |
Products in the top-left offer the best value (high score, low price).
Professional reviewers praise the EX400U's groundbreaking speed, tiny form factor, and MagSafe integration, while noting the write-speed shortfall, modest endurance, and absence of encryption or rugged features.
Users love the lightning-fast transfers and iPhone attachment, but express concerns about write-speed limits, durability, and lack of encryption.
“Extremely fast - my 100GB video project backed up in under 2 minutes.”
“Not reaching 2000MB/s - I'm getting around 800-1000MB/s on my PC.”
“Compact and lightweight (53 g); perfect for travel.”
Professional reviewers praise the drive's impressive advertised speed and rugged metal design, but caution that the 2000 MB/s claim may not be consistently achievable due to undisclosed internals.
Everyday users love the fast transfers and portability, yet many report slower-than-advertised speeds and occasional heating.
