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Portable SSDs

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Corsair EX400U Portable 1TB vs Seagate One Touch SSD Portable 500GB

Compare Corsair EX400U Portable 1TB and Seagate One Touch SSD Portable 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 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 500GB
7.5/10

A 500GB One Touch is Seagate's bottom-of-line portable SSD — usually the cheapest brand-name Gen 2 1TB-and-below portable at retail. The bundle includes Rescue data recovery (extending Seagate's warranty protection into physical damage recovery).

1030 MB/s read
Budget pricing
Both USB-C and USB-A cables
Check on Amazon →

Spec Comparison

Spec
Corsair EX400U Portable 1TB
Seagate One Touch SSD Portable 500GB
Read Speed
3.3 GB/s ✓
1.0 GB/s
Write Speed
3.0 GB/s ✓
1.0 GB/s
Capacity
1 TB ✓
500 GB
Interface
USB4
USB 3.2 Gen 2
Endurance (TBW)
600 TB ✓
300 TB
Warranty
5 Years ✓
3 Years
Score
9.0/10 ✓
7.5/10
Total Wins
6 wins
0 wins

Frequently Asked Questions

Which is better, Corsair EX400U Portable 1TB or Seagate One Touch SSD Portable 500GB?
The Corsair EX400U Portable 1TB scores 9.0/10 compared to 7.5/10 for the Seagate One Touch SSD Portable 500GB. 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 500GB?
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 500GB. Capacity options differ: Corsair EX400U Portable 1TB is 1TB while Seagate One Touch SSD Portable 500GB is 500GB. The Corsair EX400U Portable 1TB uses USB4 while the Seagate One Touch SSD Portable 500GB uses USB 3.2 Gen 2.
Which is faster, Corsair EX400U Portable 1TB or Seagate One Touch SSD Portable 500GB?
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 500GB. That's a 220% speed advantage.
Which has better value, Corsair EX400U Portable 1TB or Seagate One Touch SSD Portable 500GB?
The Corsair EX400U Portable 1TB scores higher (9.0 vs 7.5/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

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