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Portable SSDs

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Corsair EX400U Portable 1TB vs WD My Passport SSD Portable 4TB

Compare Corsair EX400U Portable 1TB and WD My Passport SSD Portable 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 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 →

Western Digital

WD My Passport SSD Portable 4TB
8.7/10

A 4TB My Passport SSD portable — same physical package as the 1TB/2TB but with the 4TB die stack. The biggest single-portable WD ships and one of the few 4TB portable SSDs at retail, period. Compares closely with the Samsung T7 4TB.

4TB slim form factor
2400 TBW endurance
AES hardware encryption
Check on Amazon →

Spec Comparison

Spec
Corsair EX400U Portable 1TB
WD My Passport SSD Portable 4TB
Read Speed
3.3 GB/s ✓
1.1 GB/s
Write Speed
3.0 GB/s ✓
1.0 GB/s
Capacity
1 TB
4 TB ✓
Interface
USB4
USB 3.2 Gen 2
Endurance (TBW)
600 TB
2,400 TB ✓
Warranty
5 Years ✓
3 Years
Score
9.0/10 ✓
8.7/10
Total Wins
4 wins
2 wins

Frequently Asked Questions

Which is better, Corsair EX400U Portable 1TB or WD My Passport SSD Portable 4TB?
The Corsair EX400U Portable 1TB scores 9.0/10 compared to 8.7/10 for the WD My Passport SSD Portable 4TB. Our expert analysis favors the Corsair EX400U Portable 1TB for its superior speed.
What's the difference between Corsair EX400U Portable 1TB and WD My Passport SSD Portable 4TB?
The key differences: The Corsair EX400U Portable 1TB offers 3,300 MB/s reads vs 1,050 MB/s for the WD My Passport SSD Portable 4TB. Capacity options differ: Corsair EX400U Portable 1TB is 1TB while WD My Passport SSD Portable 4TB is 4TB. The Corsair EX400U Portable 1TB uses USB4 while the WD My Passport SSD Portable 4TB uses USB 3.2 Gen 2.
Which is faster, Corsair EX400U Portable 1TB or WD My Passport SSD Portable 4TB?
The Corsair EX400U Portable 1TB is faster with 3,300 MB/s read speeds compared to 1,050 MB/s for the WD My Passport SSD Portable 4TB. That's a 214% speed advantage.
Which has better value, Corsair EX400U Portable 1TB or WD My Passport SSD Portable 4TB?
The Corsair EX400U Portable 1TB scores higher (9.0 vs 8.7/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

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