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External SSDs

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ADATA SE800 1TB vs Corsair EX400U USB4 — Which External SSD Is Faster & Better Value?

Compare ADATA SE800 1TB and Corsair EX400U USB4 side by side. Both are 1TB USB 3.2 Gen 2 external SSDs, but they differ in speed, design, and value. Here's how they stack up.

ADATA

ADATA SE800 1TB
7.4/10

A compact 1050-class Gen 2 portable at a budget price point. The SE800 is one of the cheapest brand-name 1TB external SSDs in retail — the cost-cutting shows in the plastic body and shorter warranty.

1000 MB/s read
Budget pricing
Tiny form factor
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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
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Spec Comparison

Spec
ADATA SE800 1TB
Corsair EX400U USB4
Read Speed
1.0 GB/s
4.0 GB/s ✓
Write Speed
950 MB/s
3.6 GB/s ✓
Capacity
1 TB
1 TB ✓
Interface
USB 3.2 Gen 2
USB4
Endurance (TBW)
600 TB
700 TB ✓
Warranty
3 Years
5 Years ✓
Score
7.4/10
9.2/10 ✓
Total Wins
0 wins
6 wins

Frequently Asked Questions

Which is better, ADATA SE800 1TB or Corsair EX400U USB4?
The Corsair EX400U USB4 scores 9.2/10 compared to 7.4/10 for the ADATA SE800 1TB. Our expert analysis favors the Corsair EX400U USB4 for its superior speed.
What's the difference between ADATA SE800 1TB and Corsair EX400U USB4?
The key differences: The ADATA SE800 1TB offers 1,000 MB/s reads vs 4,000 MB/s for the Corsair EX400U USB4. Capacity options differ: ADATA SE800 1TB is 1TB while Corsair EX400U USB4 is 1TB. The ADATA SE800 1TB uses USB 3.2 Gen 2 while the Corsair EX400U USB4 uses USB4.
Which is faster, ADATA SE800 1TB or Corsair EX400U USB4?
The Corsair EX400U USB4 is faster with 4,000 MB/s read speeds compared to 1,000 MB/s for the ADATA SE800 1TB. That's a 300% speed advantage.
Which has better value, ADATA SE800 1TB or Corsair EX400U USB4?
The Corsair EX400U USB4 scores higher (9.2 vs 7.4/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

More Comparisons

ADATA SE800 1TB vs Samsung T9 2TB → Corsair EX400U USB4 vs Samsung T9 2TB →
ADATA SE800 1TB vs Samsung T9 Portable SSD → Corsair EX400U USB4 vs Samsung T9 Portable SSD →
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ADATA SE800 1TB vs Samsung T7 4TB → Corsair EX400U USB4 vs Samsung T7 4TB →