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Portable SSDs

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Corsair EX400U Portable 1TB vs SanDisk Extreme Pro Portable 4TB

Compare Corsair EX400U Portable 1TB and SanDisk Extreme Pro 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.

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
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Our Pick

SanDisk

SanDisk Extreme Pro Portable 4TB
9.3/10

The 4TB Extreme Pro is the largest portable SSD in SanDisk's ruggedized line and a direct competitor to the Samsung T7 Shield 4TB. The 5-year warranty plus IP55 rubber armor are distinguishing factors vs other 4TB portable SSDs — most peers only offer 3.

4TB @ IP55 rugged
5-year warranty
Both cables in box
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Spec Comparison

Spec
Corsair EX400U Portable 1TB
SanDisk Extreme Pro 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
5 Years
Score
9.0/10
9.3/10 ✓
Total Wins
2 wins
3 wins

Frequently Asked Questions

Which is better, Corsair EX400U Portable 1TB or SanDisk Extreme Pro Portable 4TB?
The SanDisk Extreme Pro Portable 4TB scores 9.3/10 compared to 9.0/10 for the Corsair EX400U Portable 1TB. Our expert analysis favors the SanDisk Extreme Pro Portable 4TB for its superior value.
What's the difference between Corsair EX400U Portable 1TB and SanDisk Extreme Pro Portable 4TB?
The key differences: The Corsair EX400U Portable 1TB offers 3,300 MB/s reads vs 1,050 MB/s for the SanDisk Extreme Pro Portable 4TB. Capacity options differ: Corsair EX400U Portable 1TB is 1TB while SanDisk Extreme Pro Portable 4TB is 4TB. The Corsair EX400U Portable 1TB uses USB4 while the SanDisk Extreme Pro Portable 4TB uses USB 3.2 Gen 2.
Which is faster, Corsair EX400U Portable 1TB or SanDisk Extreme Pro Portable 4TB?
The Corsair EX400U Portable 1TB is faster with 3,300 MB/s read speeds compared to 1,050 MB/s for the SanDisk Extreme Pro Portable 4TB. That's a 214% speed advantage.
Which has better value, Corsair EX400U Portable 1TB or SanDisk Extreme Pro Portable 4TB?
The SanDisk Extreme Pro Portable 4TB scores higher (9.3 vs 9.0/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

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