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Portable SSDs

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ADATA SE800 Portable 1TB vs Lexar SL660 Portable 2TB — Which Portable SSD Is Faster & Better Value?

Compare ADATA SE800 Portable 1TB and Lexar SL660 Portable 2TB 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
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Our Pick

Lexar

Lexar SL660 Portable 2TB
8.2/10

The 2TB SL660 doubles SLC cache budget over the 1TB. RGB and aluminum body preserved -- a competitive Gen 2x2 2TB at moderate pricing, comparable with the Kingston XS2000 2TB and Patriot Evlvr 2TB.

Gen 2x2 2000 MB/s
2TB storage
Aluminum body
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Spec Comparison

Spec
ADATA SE800 Portable 1TB
Lexar SL660 Portable 2TB
Read Speed
1.0 GB/s
2.0 GB/s ✓
Write Speed
950 MB/s
2.0 GB/s ✓
Capacity
1 TB
2 TB ✓
Interface
USB 3.2 Gen 2
USB 3.2 Gen 2x2
Endurance (TBW)
600 TB
1,200 TB ✓
Warranty
3 Years
3 Years
Score
7.4/10
8.2/10 ✓
Total Wins
0 wins
5 wins

Frequently Asked Questions

Which is better, ADATA SE800 Portable 1TB or Lexar SL660 Portable 2TB?
The Lexar SL660 Portable 2TB scores 8.2/10 compared to 7.4/10 for the ADATA SE800 Portable 1TB. Our expert analysis favors the Lexar SL660 Portable 2TB for its superior speed.
What's the difference between ADATA SE800 Portable 1TB and Lexar SL660 Portable 2TB?
The key differences: The ADATA SE800 Portable 1TB offers 1,000 MB/s reads vs 2,000 MB/s for the Lexar SL660 Portable 2TB. Capacity options differ: ADATA SE800 Portable 1TB is 1TB while Lexar SL660 Portable 2TB is 2TB. The ADATA SE800 Portable 1TB uses USB 3.2 Gen 2 while the Lexar SL660 Portable 2TB uses USB 3.2 Gen 2x2.
Which is faster, ADATA SE800 Portable 1TB or Lexar SL660 Portable 2TB?
The Lexar SL660 Portable 2TB is faster with 2,000 MB/s read speeds compared to 1,000 MB/s for the ADATA SE800 Portable 1TB. That's a 100% speed advantage.
Which has better value, ADATA SE800 Portable 1TB or Lexar SL660 Portable 2TB?
The Lexar SL660 Portable 2TB scores higher (8.2 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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ADATA SE800 Portable 1TB vs Crucial X10 Pro Portable 4TB → Lexar SL660 Portable 2TB vs Crucial X10 Pro Portable 4TB →
ADATA SE800 Portable 1TB vs Sabrent Rocket Nano V2 → Lexar SL660 Portable 2TB vs Sabrent Rocket Nano V2 →