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External SSDs

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Corsair EX400U 1TB vs SanDisk Extreme Pro Portable 2TB

Compare Corsair EX400U 1TB and SanDisk Extreme Pro 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.

Corsair

Corsair EX400U 1TB
9.0/10

A 1TB USB4 portable — 3300 MB/s read on a Thunderbolt 4 / USB4 host. The EX400U is the rare USB4 drive that supports the full 40Gbps link (not all USB4 drives do). 5-year warranty is best-in-class for the speed tier.

USB4 3300 MB/s read
5-year warranty
Full 40Gbps USB4 link
Check on Amazon →
Our Pick

SanDisk

SanDisk Extreme Pro Portable 2TB
9.2/10

The 2TB Extreme Pro is where SanDisk's ruggedization meets real-world capacity — enough room for a 4K video project, full Lightroom catalog, and Time Machine backup simultaneously. The IP55 shell handles trail dust and light rain where the T7 would not.

IP55 rugged body
5-year warranty
Both cables in box
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Spec Comparison

Spec
Corsair EX400U 1TB
SanDisk Extreme Pro 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
5 Years
Score
9.0/10
9.2/10 ✓
Total Wins
2 wins
3 wins

Frequently Asked Questions

Which is better, Corsair EX400U 1TB or SanDisk Extreme Pro Portable 2TB?
The SanDisk Extreme Pro Portable 2TB scores 9.2/10 compared to 9.0/10 for the Corsair EX400U 1TB. Our expert analysis favors the SanDisk Extreme Pro Portable 2TB for its superior value.
What's the difference between Corsair EX400U 1TB and SanDisk Extreme Pro Portable 2TB?
The key differences: The Corsair EX400U 1TB offers 3,300 MB/s reads vs 1,050 MB/s for the SanDisk Extreme Pro Portable 2TB. Capacity options differ: Corsair EX400U 1TB is 1TB while SanDisk Extreme Pro Portable 2TB is 2TB. The Corsair EX400U 1TB uses USB4 while the SanDisk Extreme Pro Portable 2TB uses USB 3.2 Gen 2.
Which is faster, Corsair EX400U 1TB or SanDisk Extreme Pro Portable 2TB?
The Corsair EX400U 1TB is faster with 3,300 MB/s read speeds compared to 1,050 MB/s for the SanDisk Extreme Pro Portable 2TB. That's a 214% speed advantage.
Which has better value, Corsair EX400U 1TB or SanDisk Extreme Pro Portable 2TB?
The SanDisk Extreme Pro Portable 2TB 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

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Corsair EX400U 1TB vs Samsung T9 Portable SSD → SanDisk Extreme Pro Portable 2TB vs Samsung T9 Portable SSD →
Corsair EX400U 1TB vs Crucial X10 Pro 2TB → SanDisk Extreme Pro Portable 2TB vs Crucial X10 Pro 2TB →
Corsair EX400U 1TB vs Samsung T7 4TB → SanDisk Extreme Pro Portable 2TB vs Samsung T7 4TB →