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Portable SSDs

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Corsair EX400U Portable 1TB vs Samsung T9 Portable 4TB

Compare Corsair EX400U Portable 1TB and Samsung T9 Portable 4TB side by side. Both are 1TB USB4 external SSDs, but they differ in speed, design, and value. Here's how they stack up.

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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Our Pick

Samsung

Samsung T9 Portable 4TB
9.6/10

The 4TB T9 portable is genuinely rare — most 4TB external SSDs cap at Gen 2 (10Gbps) speeds. The T9 4TB holds 2000 MB/s sustained reads AND writes at 4TB. The right drive for working video pros who genuinely travel with 4TB of working RAW footage and need Gen 2x2 link speeds.

Gen 2x2 + 4TB
2400 TBW endurance
5-year warranty
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Spec Comparison

Spec
Corsair EX400U Portable 1TB
Samsung T9 Portable 4TB
Read Speed
3.3 GB/s ✓
2.0 GB/s
Write Speed
3.0 GB/s ✓
2.0 GB/s
Capacity
1 TB
4 TB ✓
Interface
USB4
USB 3.2 Gen 2x2
Endurance (TBW)
600 TB
2,400 TB ✓
Warranty
5 Years
5 Years
Score
9.0/10
9.6/10 ✓
Total Wins
2 wins
3 wins

Frequently Asked Questions

Which is better, Corsair EX400U Portable 1TB or Samsung T9 Portable 4TB?
The Samsung T9 Portable 4TB scores 9.6/10 compared to 9.0/10 for the Corsair EX400U Portable 1TB. Our expert analysis favors the Samsung T9 Portable 4TB for its superior value.
What's the difference between Corsair EX400U Portable 1TB and Samsung T9 Portable 4TB?
The key differences: The Corsair EX400U Portable 1TB offers 3,300 MB/s reads vs 2,000 MB/s for the Samsung T9 Portable 4TB. Capacity options differ: Corsair EX400U Portable 1TB is 1TB while Samsung T9 Portable 4TB is 4TB. The Corsair EX400U Portable 1TB uses USB4 while the Samsung T9 Portable 4TB uses USB 3.2 Gen 2x2.
Which is faster, Corsair EX400U Portable 1TB or Samsung T9 Portable 4TB?
The Corsair EX400U Portable 1TB is faster with 3,300 MB/s read speeds compared to 2,000 MB/s for the Samsung T9 Portable 4TB. That's a 65% speed advantage.
Which has better value, Corsair EX400U Portable 1TB or Samsung T9 Portable 4TB?
The Samsung T9 Portable 4TB scores higher (9.6 vs 9.0/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

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