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Corsair EX400U USB4 vs LaCie Rugged SSD Pro 4TB

Compare Corsair EX400U USB4 and LaCie Rugged SSD Pro 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 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

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LaCie

LaCie Rugged SSD Pro 4TB

9.2/10

A 4TBThunderbolt 3 portable — uniquely huge for this speed tier. The Rugged SSD Pro 4TB fills a slot nothing else really does: 4TB of fast external storage that's actually rugged, not just claimed to be.

Thunderbolt 3 + 4TB

IP67 + 3m drop + 1-ton crush

5-year Rescue

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Spec Comparison

Spec

Corsair EX400U USB4

LaCie Rugged SSD Pro 4TB

Read Speed

4.0 GB/s ✓

2.7 GB/s

Write Speed

3.6 GB/s ✓

1.9 GB/s

Capacity

1 TB

4 TB ✓

Interface

USB4

Thunderbolt 3

Endurance (TBW)

700 TB

2,400 TB ✓

Warranty

5 Years

Score

9.2/10

Total Wins

2 wins

Frequently Asked Questions

Which is better, Corsair EX400U USB4 or LaCie Rugged SSD Pro 4TB?

Both drives score 9.2/10 in our expert testing. The best choice depends on your specific needs.

What's the difference between Corsair EX400U USB4 and LaCie Rugged SSD Pro 4TB?

The key differences: The Corsair EX400U USB4 offers 4,000 MB/s reads vs 2,700 MB/s for the LaCie Rugged SSD Pro 4TB. Capacity options differ: Corsair EX400U USB4 is 1TB while LaCie Rugged SSD Pro 4TB is 4TB. The Corsair EX400U USB4 uses USB4 while the LaCie Rugged SSD Pro 4TB uses Thunderbolt 3.

Which is faster, Corsair EX400U USB4 or LaCie Rugged SSD Pro 4TB?

The Corsair EX400U USB4 is faster with 4,000 MB/s read speeds compared to 2,700 MB/s for the LaCie Rugged SSD Pro 4TB. That's a 48% speed advantage.

Which has better value, Corsair EX400U USB4 or LaCie Rugged SSD Pro 4TB?

Both drives score the same in our evaluation. Consider features, endurance, and warranty to determine which suits your needs better.

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