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Portable SSDs

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Corsair EX400U Portable 1TB vs Seagate One Touch SSD Portable 1TB

Compare Corsair EX400U Portable 1TB and Seagate One Touch SSD Portable 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 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 →

Seagate

Seagate One Touch SSD Portable 1TB
7.7/10

A 1TB budget portable from Seagate — typically the lowest-priced 1TB brand-name Gen 2 portable SSD available. Comes with the Resident Rescue data-recovery plan, which is meaningful coverage at a price point where the drive is seen as disposable.

1030 MB/s budget drive
Both USB-C/A cables
Rescue data recovery plan
Check on Amazon →

Spec Comparison

Spec
Corsair EX400U Portable 1TB
Seagate One Touch SSD Portable 1TB
Read Speed
3.3 GB/s ✓
1.0 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
600 TB
Warranty
5 Years ✓
3 Years
Score
9.0/10 ✓
7.7/10
Total Wins
4 wins
0 wins

Frequently Asked Questions

Which is better, Corsair EX400U Portable 1TB or Seagate One Touch SSD Portable 1TB?
The Corsair EX400U Portable 1TB scores 9.0/10 compared to 7.7/10 for the Seagate One Touch SSD Portable 1TB. Our expert analysis favors the Corsair EX400U Portable 1TB for its superior speed.
What's the difference between Corsair EX400U Portable 1TB and Seagate One Touch SSD Portable 1TB?
The key differences: The Corsair EX400U Portable 1TB offers 3,300 MB/s reads vs 1,030 MB/s for the Seagate One Touch SSD Portable 1TB. Capacity options differ: Corsair EX400U Portable 1TB is 1TB while Seagate One Touch SSD Portable 1TB is 1TB. The Corsair EX400U Portable 1TB uses USB4 while the Seagate One Touch SSD Portable 1TB uses USB 3.2 Gen 2.
Which is faster, Corsair EX400U Portable 1TB or Seagate One Touch SSD Portable 1TB?
The Corsair EX400U Portable 1TB is faster with 3,300 MB/s read speeds compared to 1,030 MB/s for the Seagate One Touch SSD Portable 1TB. That's a 220% speed advantage.
Which has better value, Corsair EX400U Portable 1TB or Seagate One Touch SSD Portable 1TB?
The Corsair EX400U Portable 1TB scores higher (9.0 vs 7.7/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

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