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Portable SSDs

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Corsair EX400U Portable 1TB vs Crucial X6 Portable 1TB

Compare Corsair EX400U Portable 1TB and Crucial X6 Portable 1TB side by side. Both are 1TB USB4 external SSDs, but they differ in speed, design, and value. Here's how they stack up.

Our Pick

Corsair

Corsair EX400U Portable 1TB
9.0/10

A USB4 portable from Corsair with 3300 MB/s read on Thunderbolt 4 / USB4 hosts - and the full 5-year warranty. The EX400U 1TB portable is a competitive USB4 entry point for video editors who need Thunderbolt-class speeds without the LaCie price tag.

USB4 3300 MB/s read
5-year warranty
Full 40Gbps USB4 link
Check on Amazon →

Crucial

Crucial X6 Portable 1TB
7.6/10

A budget 1TB Gen 2 portable for the portable-SSD crowd — 800 MB/s is below the Gen 2 ceiling but exactly what's needed for Time Machine and laptop backup workflows that don't depend on peak speeds. Picks IP-rating-free build to keep price aggressive.

800 MB/s read
Budget pricing
PS5/Xbox cold-library compatible
Check on Amazon →

Spec Comparison

Spec
Corsair EX400U Portable 1TB
Crucial X6 Portable 1TB
Read Speed
3.3 GB/s ✓
800 MB/s
Write Speed
3.0 GB/s ✓
800 MB/s
Capacity
1 TB
1 TB
Interface
USB4
USB 3.2 Gen 2
Endurance (TBW)
600 TB
600 TB
Warranty
5 Years ✓
3 Years
Score
9.0/10 ✓
7.6/10
Total Wins
4 wins
0 wins

Frequently Asked Questions

Which is better, Corsair EX400U Portable 1TB or Crucial X6 Portable 1TB?
The Corsair EX400U Portable 1TB scores 9.0/10 compared to 7.6/10 for the Crucial X6 Portable 1TB. Our expert analysis favors the Corsair EX400U Portable 1TB for its superior speed.
What's the difference between Corsair EX400U Portable 1TB and Crucial X6 Portable 1TB?
The key differences: The Corsair EX400U Portable 1TB offers 3,300 MB/s reads vs 800 MB/s for the Crucial X6 Portable 1TB. Capacity options differ: Corsair EX400U Portable 1TB is 1TB while Crucial X6 Portable 1TB is 1TB. The Corsair EX400U Portable 1TB uses USB4 while the Crucial X6 Portable 1TB uses USB 3.2 Gen 2.
Which is faster, Corsair EX400U Portable 1TB or Crucial X6 Portable 1TB?
The Corsair EX400U Portable 1TB is faster with 3,300 MB/s read speeds compared to 800 MB/s for the Crucial X6 Portable 1TB. That's a 313% speed advantage.
Which has better value, Corsair EX400U Portable 1TB or Crucial X6 Portable 1TB?
The Corsair EX400U Portable 1TB scores higher (9.0 vs 7.6/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

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