Skip to main content
External SSDs

As an Amazon Associate I earn from qualifying purchases. We may earn a commission from qualifying purchases made through links on this page. Prices and availability are subject to change. We are reader-supported and independent — our rankings are based on an objective scoring rubric, not sponsorship.

Corsair EX400U USB4 vs LaCie Rugged SSD Pro 1TB

Compare Corsair EX400U USB4 and LaCie Rugged SSD Pro 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 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 →

LaCie

LaCie Rugged SSD Pro 1TB
9.0/10

A Thunderbolt 3 portable SSD in LaCie's iconic orange-rubber bumpers — IP67, 3-meter drop, and 1-ton car-proof. The Rugged SSD Pro is the field-shoot standard for video crews who need one drive that survives a van rollover and still delivers Thunderbolt-class 2700 MB/s.

Thunderbolt 3 2700 MB/s
IP67 dust/water
3-meter drop + 1-ton crush
Check on Amazon →

Spec Comparison

Spec
Corsair EX400U USB4
LaCie Rugged SSD Pro 1TB
Read Speed
4.0 GB/s ✓
2.7 GB/s
Write Speed
3.6 GB/s ✓
1.9 GB/s
Capacity
1 TB ✓
1 TB
Interface
USB4
Thunderbolt 3
Endurance (TBW)
700 TB ✓
600 TB
Warranty
5 Years
5 Years
Score
9.2/10 ✓
9.0/10
Total Wins
5 wins
0 wins

Frequently Asked Questions

Which is better, Corsair EX400U USB4 or LaCie Rugged SSD Pro 1TB?
The Corsair EX400U USB4 scores 9.2/10 compared to 9.0/10 for the LaCie Rugged SSD Pro 1TB. Our expert analysis favors the Corsair EX400U USB4 for its superior speed.
What's the difference between Corsair EX400U USB4 and LaCie Rugged SSD Pro 1TB?
The key differences: The Corsair EX400U USB4 offers 4,000 MB/s reads vs 2,700 MB/s for the LaCie Rugged SSD Pro 1TB. Capacity options differ: Corsair EX400U USB4 is 1TB while LaCie Rugged SSD Pro 1TB is 1TB. The Corsair EX400U USB4 uses USB4 while the LaCie Rugged SSD Pro 1TB uses Thunderbolt 3.
Which is faster, Corsair EX400U USB4 or LaCie Rugged SSD Pro 1TB?
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 1TB. That's a 48% speed advantage.
Which has better value, Corsair EX400U USB4 or LaCie Rugged SSD Pro 1TB?
The Corsair EX400U USB4 scores higher (9.2 vs 9.0/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

More Comparisons

Corsair EX400U USB4 vs Samsung T9 2TB → LaCie Rugged SSD Pro 1TB vs Samsung T9 2TB →
Corsair EX400U USB4 vs Samsung T9 Portable SSD → LaCie Rugged SSD Pro 1TB vs Samsung T9 Portable SSD →
Corsair EX400U USB4 vs Crucial X10 Pro 2TB → LaCie Rugged SSD Pro 1TB vs Crucial X10 Pro 2TB →
Corsair EX400U USB4 vs Samsung T7 4TB → LaCie Rugged SSD Pro 1TB vs Samsung T7 4TB →