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External SSDs

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Lexar SL100 Pro 1TB vs SanDisk Extreme Pro Portable 2TB — Which External SSD Is Faster & Better Value?

Compare Lexar SL100 Pro 1TB and SanDisk Extreme Pro 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.

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
Check on Amazon →
Our Pick

SanDisk

SanDisk Extreme Pro Portable 2TB
9.2/10

The 2TB Extreme Pro is where SanDisk's ruggedization meets real-world capacity — enough room for a 4K video project, full Lightroom catalog, and Time Machine backup simultaneously. The IP55 shell handles trail dust and light rain where the T7 would not.

IP55 rugged body
5-year warranty
Both cables in box
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Spec Comparison

Spec
Lexar SL100 Pro 1TB
SanDisk Extreme Pro Portable 2TB
Read Speed
950 MB/s
1.1 GB/s ✓
Write Speed
950 MB/s
1.0 GB/s ✓
Capacity
1 TB
2 TB ✓
Interface
USB 3.2 Gen 2
USB 3.2 Gen 2
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 Portable 2TB?
The SanDisk Extreme Pro Portable 2TB scores 9.2/10 compared to 7.5/10 for the Lexar SL100 Pro 1TB. Our expert analysis favors the SanDisk Extreme Pro Portable 2TB for its superior speed.
What's the difference between Lexar SL100 Pro 1TB and SanDisk Extreme Pro Portable 2TB?
The key differences: The Lexar SL100 Pro 1TB offers 950 MB/s reads vs 1,050 MB/s for the SanDisk Extreme Pro Portable 2TB. Capacity options differ: Lexar SL100 Pro 1TB is 1TB while SanDisk Extreme Pro Portable 2TB is 2TB. The Lexar SL100 Pro 1TB uses USB 3.2 Gen 2 while the SanDisk Extreme Pro Portable 2TB uses USB 3.2 Gen 2.
Which is faster, Lexar SL100 Pro 1TB or SanDisk Extreme Pro Portable 2TB?
The SanDisk Extreme Pro Portable 2TB is faster with 1,050 MB/s read speeds compared to 950 MB/s for the Lexar SL100 Pro 1TB. That's a 11% speed advantage.
Which has better value, Lexar SL100 Pro 1TB or SanDisk Extreme Pro Portable 2TB?
The SanDisk Extreme Pro Portable 2TB 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.

More Comparisons

Lexar SL100 Pro 1TB vs Samsung T9 2TB → SanDisk Extreme Pro Portable 2TB vs Samsung T9 2TB →
Lexar SL100 Pro 1TB vs Samsung T9 Portable SSD → SanDisk Extreme Pro Portable 2TB vs Samsung T9 Portable SSD →
Lexar SL100 Pro 1TB vs Crucial X10 Pro 2TB → SanDisk Extreme Pro Portable 2TB vs Crucial X10 Pro 2TB →
Lexar SL100 Pro 1TB vs Samsung T7 4TB → SanDisk Extreme Pro Portable 2TB vs Samsung T7 4TB →