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Portable SSDs

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

Compare ADATA SE800 Portable 1TB and Corsair EX400U Portable 1TB 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 Portable 1TB
7.4/10

A budget 1TB Gen 2 portable from ADATA -- one of the cheapest brand-name 1TB portable SSDs in retail. Tiny form factor fits a shirt pocket but the plastic body lacks ruggedization. A real value buy for light-duty workflows like document cartage and PS5 game cold-library overflow.

1000 MB/s read
Budget pricing
Tiny form factor
Check on Amazon →
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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Spec Comparison

Spec
ADATA SE800 Portable 1TB
Corsair EX400U Portable 1TB
Read Speed
1.0 GB/s
3.3 GB/s ✓
Write Speed
950 MB/s
3.0 GB/s ✓
Capacity
1 TB
1 TB
Interface
USB 3.2 Gen 2
USB4
Endurance (TBW)
600 TB
600 TB
Warranty
3 Years
5 Years ✓
Score
7.4/10
9.0/10 ✓
Total Wins
0 wins
4 wins

Frequently Asked Questions

Which is better, ADATA SE800 Portable 1TB or Corsair EX400U Portable 1TB?
The Corsair EX400U Portable 1TB scores 9.0/10 compared to 7.4/10 for the ADATA SE800 Portable 1TB. Our expert analysis favors the Corsair EX400U Portable 1TB for its superior speed.
What's the difference between ADATA SE800 Portable 1TB and Corsair EX400U Portable 1TB?
The key differences: The ADATA SE800 Portable 1TB offers 1,000 MB/s reads vs 3,300 MB/s for the Corsair EX400U Portable 1TB. Capacity options differ: ADATA SE800 Portable 1TB is 1TB while Corsair EX400U Portable 1TB is 1TB. The ADATA SE800 Portable 1TB uses USB 3.2 Gen 2 while the Corsair EX400U Portable 1TB uses USB4.
Which is faster, ADATA SE800 Portable 1TB or Corsair EX400U Portable 1TB?
The Corsair EX400U Portable 1TB is faster with 3,300 MB/s read speeds compared to 1,000 MB/s for the ADATA SE800 Portable 1TB. That's a 230% speed advantage.
Which has better value, ADATA SE800 Portable 1TB or Corsair EX400U Portable 1TB?
The Corsair EX400U Portable 1TB scores higher (9.0 vs 7.4/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

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