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External SSDs

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Corsair EX400U 1TB vs Crucial X6 2TB

Compare Corsair EX400U 1TB 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 1TB
9.0/10

A 1TB USB4 portable — 3300 MB/s read on a Thunderbolt 4 / USB4 host. The EX400U is the rare USB4 drive that supports the full 40Gbps link (not all USB4 drives do). 5-year warranty is best-in-class for the speed tier.

USB4 3300 MB/s read
5-year warranty
Full 40Gbps USB4 link
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 1TB
Crucial X6 2TB
Read Speed
3.3 GB/s ✓
800 MB/s
Write Speed
3.0 GB/s ✓
800 MB/s
Capacity
1 TB
2 TB ✓
Interface
USB4
USB 3.2 Gen 2
Endurance (TBW)
600 TB
1,200 TB ✓
Warranty
5 Years ✓
3 Years
Score
9.0/10 ✓
8.0/10
Total Wins
4 wins
2 wins

Frequently Asked Questions

Which is better, Corsair EX400U 1TB or Crucial X6 2TB?
The Corsair EX400U 1TB scores 9.0/10 compared to 8.0/10 for the Crucial X6 2TB. Our expert analysis favors the Corsair EX400U 1TB for its superior speed.
What's the difference between Corsair EX400U 1TB and Crucial X6 2TB?
The key differences: The Corsair EX400U 1TB offers 3,300 MB/s reads vs 800 MB/s for the Crucial X6 2TB. Capacity options differ: Corsair EX400U 1TB is 1TB while Crucial X6 2TB is 2TB. The Corsair EX400U 1TB uses USB4 while the Crucial X6 2TB uses USB 3.2 Gen 2.
Which is faster, Corsair EX400U 1TB or Crucial X6 2TB?
The Corsair EX400U 1TB is faster with 3,300 MB/s read speeds compared to 800 MB/s for the Crucial X6 2TB. That's a 313% speed advantage.
Which has better value, Corsair EX400U 1TB or Crucial X6 2TB?
The Corsair EX400U 1TB scores higher (9.0 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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