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External SSDs

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Corsair EX400U 1TB vs Seagate FireCuda Gaming SSD 4TB

Compare Corsair EX400U 1TB and Seagate FireCuda Gaming SSD 4TB 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 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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Seagate

Seagate FireCuda Gaming SSD 4TB
8.5/10

The 4TB FireCuda is the biggest Seagate portable SSD — a Gen 2x2 RGB drive sized for entire game-library overflow. The 5-year warranty and included Rescue plan are real value-adds at this capacity.

4TB Gen 2x2 storage
5-year warranty + Rescue
RGB lighting
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Spec Comparison

Spec
Corsair EX400U 1TB
Seagate FireCuda Gaming SSD 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 2
Endurance (TBW)
600 TB
2,400 TB ✓
Warranty
5 Years
5 Years
Score
9.0/10 ✓
8.5/10
Total Wins
3 wins
2 wins

Frequently Asked Questions

Which is better, Corsair EX400U 1TB or Seagate FireCuda Gaming SSD 4TB?
The Corsair EX400U 1TB scores 9.0/10 compared to 8.5/10 for the Seagate FireCuda Gaming SSD 4TB. Our expert analysis favors the Corsair EX400U 1TB for its superior speed.
What's the difference between Corsair EX400U 1TB and Seagate FireCuda Gaming SSD 4TB?
The key differences: The Corsair EX400U 1TB offers 3,300 MB/s reads vs 2,000 MB/s for the Seagate FireCuda Gaming SSD 4TB. Capacity options differ: Corsair EX400U 1TB is 1TB while Seagate FireCuda Gaming SSD 4TB is 4TB. The Corsair EX400U 1TB uses USB4 while the Seagate FireCuda Gaming SSD 4TB uses USB 3.2 Gen 2.
Which is faster, Corsair EX400U 1TB or Seagate FireCuda Gaming SSD 4TB?
The Corsair EX400U 1TB is faster with 3,300 MB/s read speeds compared to 2,000 MB/s for the Seagate FireCuda Gaming SSD 4TB. That's a 65% speed advantage.
Which has better value, Corsair EX400U 1TB or Seagate FireCuda Gaming SSD 4TB?
The Corsair EX400U 1TB scores higher (9.0 vs 8.5/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

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