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Portable SSDs

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Corsair EX100U Portable 2TB vs Corsair EX400U Portable 1TB

Compare Corsair EX100U Portable 2TB and Corsair EX400U Portable 1TB side by side. Both are 2TB USB 3.2 Gen 2x2 external SSDs, but they differ in speed, design, and value. Here's how they stack up.

Corsair

Corsair EX100U Portable 2TB
8.5/10

A 2TB Gen 2x2 portable with the Corsair aluminum body. Write speed drops to 1800 MB/s over the 1TB 2000 - a 10% bump down for the larger die stack. Still above 2GB/s on paper for long transfers as long as the host is Gen 2x2.

Gen 2x2 + 2TB
Cool aluminum body
Both cables in box
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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
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Spec Comparison

Spec
Corsair EX100U Portable 2TB
Corsair EX400U Portable 1TB
Read Speed
2.0 GB/s
3.3 GB/s ✓
Write Speed
1.8 GB/s
3.0 GB/s ✓
Capacity
2 TB ✓
1 TB
Interface
USB 3.2 Gen 2x2
USB4
Endurance (TBW)
1,200 TB ✓
600 TB
Warranty
3 Years
5 Years ✓
Score
8.5/10
9.0/10 ✓
Total Wins
2 wins
4 wins

Frequently Asked Questions

Which is better, Corsair EX100U Portable 2TB or Corsair EX400U Portable 1TB?
The Corsair EX400U Portable 1TB scores 9.0/10 compared to 8.5/10 for the Corsair EX100U Portable 2TB. Our expert analysis favors the Corsair EX400U Portable 1TB for its superior speed.
What's the difference between Corsair EX100U Portable 2TB and Corsair EX400U Portable 1TB?
The key differences: The Corsair EX100U Portable 2TB offers 2,000 MB/s reads vs 3,300 MB/s for the Corsair EX400U Portable 1TB. Capacity options differ: Corsair EX100U Portable 2TB is 2TB while Corsair EX400U Portable 1TB is 1TB. The Corsair EX100U Portable 2TB uses USB 3.2 Gen 2x2 while the Corsair EX400U Portable 1TB uses USB4.
Which is faster, Corsair EX100U Portable 2TB or Corsair EX400U Portable 1TB?
The Corsair EX400U Portable 1TB is faster with 3,300 MB/s read speeds compared to 2,000 MB/s for the Corsair EX100U Portable 2TB. That's a 65% speed advantage.
Which has better value, Corsair EX100U Portable 2TB or Corsair EX400U Portable 1TB?
The Corsair EX400U Portable 1TB scores higher (9.0 vs 8.5/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

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