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Portable SSDs

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Corsair EX400U Portable 1TB vs Crucial X9 Pro

Compare Corsair EX400U Portable 1TB and Crucial X9 Pro 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 X9 Pro
8.9/10

Ultra-compact pro-grade portable SSD. Pocket-sized at just 65g. Ideal for mobile professionals.

Extremely compact and lightweight (65g)
IP55 water and dust resistance
Drop-proof up to 2 meters
Check on Amazon →

Spec Comparison

Spec
Corsair EX400U Portable 1TB
Crucial X9 Pro
Read Speed
3.3 GB/s ✓
1.1 GB/s
Write Speed
3.0 GB/s ✓
1.0 GB/s
Capacity
1 TB
1 TB ✓
Interface
USB4
USB 3.2 Gen 2
Endurance (TBW)
600 TB ✓
440 TB
Warranty
5 Years ✓
3 Years
Score
9.0/10 ✓
8.9/10
Total Wins
5 wins
1 win

Frequently Asked Questions

Which is better, Corsair EX400U Portable 1TB or Crucial X9 Pro?
The Corsair EX400U Portable 1TB scores 9.0/10 compared to 8.9/10 for the Crucial X9 Pro. Our expert analysis favors the Corsair EX400U Portable 1TB for its superior speed.
What's the difference between Corsair EX400U Portable 1TB and Crucial X9 Pro?
The key differences: The Corsair EX400U Portable 1TB offers 3,300 MB/s reads vs 1,050 MB/s for the Crucial X9 Pro. Capacity options differ: Corsair EX400U Portable 1TB is 1TB while Crucial X9 Pro is 1TB. The Corsair EX400U Portable 1TB uses USB4 while the Crucial X9 Pro uses USB 3.2 Gen 2.
Which is faster, Corsair EX400U Portable 1TB or Crucial X9 Pro?
The Corsair EX400U Portable 1TB is faster with 3,300 MB/s read speeds compared to 1,050 MB/s for the Crucial X9 Pro. That's a 214% speed advantage.
Which has better value, Corsair EX400U Portable 1TB or Crucial X9 Pro?
The Corsair EX400U Portable 1TB scores higher (9.0 vs 8.9/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

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