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External SSDs

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Corsair EX400U USB4 vs Crucial X6 2TB

Compare Corsair EX400U USB4 and Crucial X6 2TB 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 USB4
9.2/10

High-bandwidth USB4 external SSD delivering up to 4,000MB/s reads with MagSafe compatibility. Perfect for creative professionals with Thunderbolt 4 and USB4 laptops.

Blazing 4000MB/s read speeds over USB4
MagSafe magnetic attachment for iPhone
Full Thunderbolt 4 backward compatibility
Check on Amazon →

Crucial

Crucial X6 2TB
8.0/10

The 2TB X6 is a budget buy for console-game storage or backup duty — at 800 MB/s it's easily fast enough for cold-game library overflow on PS5 (where the internal SSD handles active play), and the larger die stack holds the 800 MB/s rate longer than the 1TB.

800 MB/s read
Budget-friendly $/TB
PS5/Xbox compatible for cold library
Check on Amazon →

Spec Comparison

Spec
Corsair EX400U USB4
Crucial X6 2TB
Read Speed
4.0 GB/s ✓
800 MB/s
Write Speed
3.6 GB/s ✓
800 MB/s
Capacity
1 TB
2 TB ✓
Interface
USB4
USB 3.2 Gen 2
Endurance (TBW)
700 TB
1,200 TB ✓
Warranty
5 Years ✓
3 Years
Score
9.2/10 ✓
8.0/10
Total Wins
4 wins
2 wins

Frequently Asked Questions

Which is better, Corsair EX400U USB4 or Crucial X6 2TB?
The Corsair EX400U USB4 scores 9.2/10 compared to 8.0/10 for the Crucial X6 2TB. Our expert analysis favors the Corsair EX400U USB4 for its superior speed.
What's the difference between Corsair EX400U USB4 and Crucial X6 2TB?
The key differences: The Corsair EX400U USB4 offers 4,000 MB/s reads vs 800 MB/s for the Crucial X6 2TB. Capacity options differ: Corsair EX400U USB4 is 1TB while Crucial X6 2TB is 2TB. The Corsair EX400U USB4 uses USB4 while the Crucial X6 2TB uses USB 3.2 Gen 2.
Which is faster, Corsair EX400U USB4 or Crucial X6 2TB?
The Corsair EX400U USB4 is faster with 4,000 MB/s read speeds compared to 800 MB/s for the Crucial X6 2TB. That's a 400% speed advantage.
Which has better value, Corsair EX400U USB4 or Crucial X6 2TB?
The Corsair EX400U USB4 scores higher (9.2 vs 8.0/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

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