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Corsair EX400U 1TB vs Crucial X6 1TB

Compare Corsair EX400U 1TB and Crucial X6 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 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

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Crucial

Crucial X6 1TB

7.8/10

The X6 is Crucial's budget Gen 2 line — half the speed of the X9 Pro at typically half the price. A sensible choice for game-library expansion on PS5/Xbox or as a Time Machine drive, where sustained write speed matters far less than capacity-per-dollar.

800 MB/s over Gen 2

Cheapest per-TB of Crucial's portable line

Compatible with PS5/Xbox expandable storage

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Spec Comparison

Spec

Corsair EX400U 1TB

Crucial X6 1TB

Read Speed

3.3 GB/s ✓

800 MB/s

Write Speed

3.0 GB/s ✓

800 MB/s

Capacity

1 TB

Interface

USB4

USB 3.2 Gen 2

Endurance (TBW)

600 TB

Warranty

5 Years ✓

3 Years

Score

9.0/10 ✓

7.8/10

Total Wins

4 wins

0 wins

Frequently Asked Questions

Which is better, Corsair EX400U 1TB or Crucial X6 1TB?

The Corsair EX400U 1TB scores 9.0/10 compared to 7.8/10 for the Crucial X6 1TB. Our expert analysis favors the Corsair EX400U 1TB for its superior speed.

What's the difference between Corsair EX400U 1TB and Crucial X6 1TB?

The key differences: The Corsair EX400U 1TB offers 3,300 MB/s reads vs 800 MB/s for the Crucial X6 1TB. Capacity options differ: Corsair EX400U 1TB is 1TB while Crucial X6 1TB is 1TB. The Corsair EX400U 1TB uses USB4 while the Crucial X6 1TB uses USB 3.2 Gen 2.

Which is faster, Corsair EX400U 1TB or Crucial X6 1TB?

The Corsair EX400U 1TB is faster with 3,300 MB/s read speeds compared to 800 MB/s for the Crucial X6 1TB. That's a 313% speed advantage.

Which has better value, Corsair EX400U 1TB or Crucial X6 1TB?

The Corsair EX400U 1TB scores higher (9.0 vs 7.8/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

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