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External SSDs

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Corsair EX400U USB4 vs Seagate One Touch SSD 500GB

Compare Corsair EX400U USB4 and Seagate One Touch SSD 500GB 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 USB4
9.2/10

High-bandwidth USB4 external SSD delivering up to 4,000MB/s reads with MagSafe compatibility. Perfect for creative professionals with Thunderbolt 4 and USB4 laptops.

Blazing 4000MB/s read speeds over USB4
MagSafe magnetic attachment for iPhone
Full Thunderbolt 4 backward compatibility
Check on Amazon →

Seagate

Seagate One Touch SSD 500GB
7.6/10

The 500GB One Touch is Seagate's entry-level portable SSD — typically the cheapest brand-name 1050-class Gen 2 drive at retail. Speeds are real-world faster than rated for short transfers; the catch is that the SLC cache is tiny.

1030 MB/s read
Cheapest brand-name Gen 2 SSD class
Both cables included
Check on Amazon →

Spec Comparison

Spec
Corsair EX400U USB4
Seagate One Touch SSD 500GB
Read Speed
4.0 GB/s ✓
1.0 GB/s
Write Speed
3.6 GB/s ✓
1.0 GB/s
Capacity
1 TB ✓
500 GB
Interface
USB4
USB 3.2 Gen 2
Endurance (TBW)
700 TB ✓
300 TB
Warranty
5 Years ✓
3 Years
Score
9.2/10 ✓
7.6/10
Total Wins
6 wins
0 wins

Frequently Asked Questions

Which is better, Corsair EX400U USB4 or Seagate One Touch SSD 500GB?
The Corsair EX400U USB4 scores 9.2/10 compared to 7.6/10 for the Seagate One Touch SSD 500GB. Our expert analysis favors the Corsair EX400U USB4 for its superior speed.
What's the difference between Corsair EX400U USB4 and Seagate One Touch SSD 500GB?
The key differences: The Corsair EX400U USB4 offers 4,000 MB/s reads vs 1,030 MB/s for the Seagate One Touch SSD 500GB. Capacity options differ: Corsair EX400U USB4 is 1TB while Seagate One Touch SSD 500GB is 500GB. The Corsair EX400U USB4 uses USB4 while the Seagate One Touch SSD 500GB uses USB 3.2 Gen 2.
Which is faster, Corsair EX400U USB4 or Seagate One Touch SSD 500GB?
The Corsair EX400U USB4 is faster with 4,000 MB/s read speeds compared to 1,030 MB/s for the Seagate One Touch SSD 500GB. That's a 288% speed advantage.
Which has better value, Corsair EX400U USB4 or Seagate One Touch SSD 500GB?
The Corsair EX400U USB4 scores higher (9.2 vs 7.6/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

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