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External SSDs

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Lexar SL100 Pro 1TB vs SanDisk Extreme Pro 4TB

Compare Lexar SL100 Pro 1TB and SanDisk Extreme Pro 4TB 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.

Lexar

Lexar SL100 Pro 1TB
7.5/10

A 950 MB/s Gen 2 portable in a brushed-aluminum case the size of a credit card. The SL100 Pro is one of the smallest 1TB Gen 2 SSDs at retail — buy it for the form factor, not the rated speed (which undershoots the Gen 2 ceiling).

Brushed-aluminum case
950 MB/s read
Tiny credit-card footprint
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Our Pick

SanDisk

SanDisk Extreme Pro 4TB
9.2/10

Extreme 4TB portable SSD with 2000MB/s speeds and IP55 rating. The ultimate high-capacity drive for professionals on the go.

4TB capacity with 2000MB/s read and write
IP55 water and dust resistance
5-year warranty
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Spec Comparison

Spec
Lexar SL100 Pro 1TB
SanDisk Extreme Pro 4TB
Read Speed
950 MB/s
2.0 GB/s ✓
Write Speed
950 MB/s
2.0 GB/s ✓
Capacity
1 TB
4 TB ✓
Interface
USB 3.2 Gen 2
USB 3.2 Gen 2x2
Endurance (TBW)
600 TB
1,200 TB ✓
Warranty
3 Years
5 Years ✓
Score
7.5/10
9.2/10 ✓
Total Wins
0 wins
6 wins

Frequently Asked Questions

Which is better, Lexar SL100 Pro 1TB or SanDisk Extreme Pro 4TB?
The SanDisk Extreme Pro 4TB scores 9.2/10 compared to 7.5/10 for the Lexar SL100 Pro 1TB. Our expert analysis favors the SanDisk Extreme Pro 4TB for its superior speed.
What's the difference between Lexar SL100 Pro 1TB and SanDisk Extreme Pro 4TB?
The key differences: The Lexar SL100 Pro 1TB offers 950 MB/s reads vs 2,000 MB/s for the SanDisk Extreme Pro 4TB. Capacity options differ: Lexar SL100 Pro 1TB is 1TB while SanDisk Extreme Pro 4TB is 4TB. The Lexar SL100 Pro 1TB uses USB 3.2 Gen 2 while the SanDisk Extreme Pro 4TB uses USB 3.2 Gen 2x2.
Which is faster, Lexar SL100 Pro 1TB or SanDisk Extreme Pro 4TB?
The SanDisk Extreme Pro 4TB is faster with 2,000 MB/s read speeds compared to 950 MB/s for the Lexar SL100 Pro 1TB. That's a 111% speed advantage.
Which has better value, Lexar SL100 Pro 1TB or SanDisk Extreme Pro 4TB?
The SanDisk Extreme Pro 4TB scores higher (9.2 vs 7.5/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

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