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Portable SSDs

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Corsair EX400U Portable 1TB vs SanDisk Extreme Portable 2TB

Compare Corsair EX400U Portable 1TB and SanDisk Extreme Portable 2TB 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
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SanDisk

SanDisk Extreme Portable 2TB
8.6/10

A 2TB IP55 rugged portable — the budget sibling of the Extreme Pro 2TB. Same IP55 body and 1050 MB/s read, just dropped to a 3-year warranty and slower sustained writes on long transfers. Worth it if your use case is backup and console library overflow rather than video editing.

IP55 rugged body
2TB capacity
Both cables in box
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Spec Comparison

Spec
Corsair EX400U Portable 1TB
SanDisk Extreme Portable 2TB
Read Speed
3.3 GB/s ✓
1.1 GB/s
Write Speed
3.0 GB/s ✓
1.0 GB/s
Capacity
1 TB
2 TB ✓
Interface
USB4
USB 3.2 Gen 2
Endurance (TBW)
600 TB
1,200 TB ✓
Warranty
5 Years ✓
3 Years
Score
9.0/10 ✓
8.6/10
Total Wins
4 wins
2 wins

Frequently Asked Questions

Which is better, Corsair EX400U Portable 1TB or SanDisk Extreme Portable 2TB?
The Corsair EX400U Portable 1TB scores 9.0/10 compared to 8.6/10 for the SanDisk Extreme Portable 2TB. Our expert analysis favors the Corsair EX400U Portable 1TB for its superior speed.
What's the difference between Corsair EX400U Portable 1TB and SanDisk Extreme Portable 2TB?
The key differences: The Corsair EX400U Portable 1TB offers 3,300 MB/s reads vs 1,050 MB/s for the SanDisk Extreme Portable 2TB. Capacity options differ: Corsair EX400U Portable 1TB is 1TB while SanDisk Extreme Portable 2TB is 2TB. The Corsair EX400U Portable 1TB uses USB4 while the SanDisk Extreme Portable 2TB uses USB 3.2 Gen 2.
Which is faster, Corsair EX400U Portable 1TB or SanDisk Extreme Portable 2TB?
The Corsair EX400U Portable 1TB is faster with 3,300 MB/s read speeds compared to 1,050 MB/s for the SanDisk Extreme Portable 2TB. That's a 214% speed advantage.
Which has better value, Corsair EX400U Portable 1TB or SanDisk Extreme Portable 2TB?
The Corsair EX400U Portable 1TB scores higher (9.0 vs 8.6/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

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