Corsair EX400U 2TB
Score: 74/100
UGREEN 1TB SSD
Score: 70/100Rankings
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.
UGREEN's 1TB portable SSD offers top-tier transfer speeds and robust data-integrity features in a slim aluminum package, though it relies on a compatible host for full performance and lacks rugged accessories.
| Attribute | | |
|---|---|---|
2,048 GBbest | 1,024 GB | |
4,000 MB/sbest | 2,000 MB/s | |
3,600 MB/sbest | 2,000 MB/s | |
3 yearsbest | 3 yearsbest | |
| ↓ lower better | 92 g | 90 gbest |
| ↓ lower better | 11.9 mm | 7.9 mmbest |
| ↓ lower better | 64.3 mmbest | 74.9 mm |
| ↓ lower better | 64 mm | 46 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance(3) | ||
Interface | USB4 | USB 3.2 Gen 2x2 |
Sequential Read Speed (MB/s) | 4000 MB/s | 2000 MB/s |
Sequential Write Speed (MB/s) | 3600 MB/s | 2000 MB/s |
Compatibility(1) | ||
Supported Operating Systems | Windows, macOS, iOS | Windows, macOS, Linux, Xbox Series X/S, PS5, PS4, iPhone 16, tablets |
Storage(1) | ||
Storage Capacity (GB) | 2048 GB | 1024 GB |
Power(1) | ||
Power Source | USB-C PD | Bus-powered |
Build & Design(4) | ||
Weight (g) | 92 g | 90 g |
Thickness (mm) | 11.9 mm | 7.9 mm |
Length (mm) | 64.3 mm | 74.9 mm |
Width (mm) | 64 mm | 46.0 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.
Reviewers applaud the 2,000 MB/s throughput, dual-cooling design, and advanced error-correction, positioning it as a premium alternative to other high-speed SSDs.
Users consistently praise lightning-fast transfers and pocket-size convenience, while noting the need for a USB 3.2 Gen 2x2 port and missing protective case.
