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External SSDs

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Corsair EX400U 1TB vs Samsung T9 Portable 4TB

Compare Corsair EX400U 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 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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Our Pick

Samsung

Samsung T9 Portable 4TB
9.3/10

Blazing-fast 4TB external SSD with USB 3.2 Gen 2x2 speeds up to 2000MB/s. Perfect for content creators with massive file libraries.

4TB capacity with 2000MB/s read speeds
USB 3.2 Gen 2x2 interface
Sleek all-aluminum build
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Spec Comparison

Spec
Corsair EX400U 1TB
Samsung T9 Portable 4TB
Read Speed
3.3 GB/s ✓
2.0 GB/s
Write Speed
3.0 GB/s ✓
1.9 GB/s
Capacity
1 TB
4 TB ✓
Interface
USB4
USB 3.2 Gen 2x2
Endurance (TBW)
600 TB
1,200 TB ✓
Warranty
5 Years
5 Years
Score
9.0/10
9.3/10 ✓
Total Wins
2 wins
3 wins

Frequently Asked Questions

Which is better, Corsair EX400U 1TB or Samsung T9 Portable 4TB?
The Samsung T9 Portable 4TB scores 9.3/10 compared to 9.0/10 for the Corsair EX400U 1TB. Our expert analysis favors the Samsung T9 Portable 4TB for its superior value.
What's the difference between Corsair EX400U 1TB and Samsung T9 Portable 4TB?
The key differences: The Corsair EX400U 1TB offers 3,300 MB/s reads vs 2,000 MB/s for the Samsung T9 Portable 4TB. Capacity options differ: Corsair EX400U 1TB is 1TB while Samsung T9 Portable 4TB is 4TB. The Corsair EX400U 1TB uses USB4 while the Samsung T9 Portable 4TB uses USB 3.2 Gen 2x2.
Which is faster, Corsair EX400U 1TB or Samsung T9 Portable 4TB?
The Corsair EX400U 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 1TB or Samsung T9 Portable 4TB?
The Samsung T9 Portable 4TB scores higher (9.3 vs 9.0/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

More Comparisons

Corsair EX400U 1TB vs Samsung T9 2TB → Samsung T9 Portable 4TB vs Samsung T9 2TB →
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Corsair EX400U 1TB vs Crucial X10 Pro 2TB → Samsung T9 Portable 4TB vs Crucial X10 Pro 2TB →
Corsair EX400U 1TB vs Samsung T7 4TB → Samsung T9 Portable 4TB vs Samsung T7 4TB →