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Portable SSDs

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ADATA SE800 Portable 2TB vs Corsair EX400U Portable 1TB — Which Portable SSD Is Faster & Better Value?

Compare ADATA SE800 Portable 2TB and Corsair EX400U Portable 1TB side by side. Both are 2TB 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 2TB
7.6/10

The 2TB SE800 keeps the same tiny plastic body of the 1TB version -- awwardly small for 2TB. Budget pricing per-TB makes it a value buy for PS5/Xbox cold library expansion, where sustained write speed takes a back seat to capacity-per-dollar.

2TB budget portable
1000 MB/s read
Tiny form factor
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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 2TB
Corsair EX400U Portable 1TB
Read Speed
1.0 GB/s
3.3 GB/s ✓
Write Speed
950 MB/s
3.0 GB/s ✓
Capacity
2 TB ✓
1 TB
Interface
USB 3.2 Gen 2
USB4
Endurance (TBW)
1,200 TB ✓
600 TB
Warranty
3 Years
5 Years ✓
Score
7.6/10
9.0/10 ✓
Total Wins
2 wins
4 wins

Frequently Asked Questions

Which is better, ADATA SE800 Portable 2TB or Corsair EX400U Portable 1TB?
The Corsair EX400U Portable 1TB scores 9.0/10 compared to 7.6/10 for the ADATA SE800 Portable 2TB. Our expert analysis favors the Corsair EX400U Portable 1TB for its superior speed.
What's the difference between ADATA SE800 Portable 2TB and Corsair EX400U Portable 1TB?
The key differences: The ADATA SE800 Portable 2TB offers 1,000 MB/s reads vs 3,300 MB/s for the Corsair EX400U Portable 1TB. Capacity options differ: ADATA SE800 Portable 2TB is 2TB while Corsair EX400U Portable 1TB is 1TB. The ADATA SE800 Portable 2TB uses USB 3.2 Gen 2 while the Corsair EX400U Portable 1TB uses USB4.
Which is faster, ADATA SE800 Portable 2TB 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 2TB. That's a 230% speed advantage.
Which has better value, ADATA SE800 Portable 2TB or Corsair EX400U Portable 1TB?
The Corsair EX400U Portable 1TB scores higher (9.0 vs 7.6/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

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