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Crucial X9 Pro 1TB vs Lexar SL100 Pro 1TB

Compare Crucial X9 Pro 1TB and Lexar SL100 Pro 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.

Our Pick

Crucial

Crucial X9 Pro 1TB

9.0/10

A 1050 MB/s portable SSD for creators who need TLC NAND, hardware encryption, and a 5-year warranty at less than Extreme Pro prices. The X9 Pro is Crucial's premium Gen 2 line — it targets direct-edit workflows where sustained writes and write endurance matter more than headline speeds.

Real TLC NAND (not QLC)

5-year warranty

AES 256-bit hardware encryption

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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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Spec Comparison

Spec

Crucial X9 Pro 1TB

Lexar SL100 Pro 1TB

Read Speed

1.1 GB/s ✓

950 MB/s

Write Speed

950 MB/s

Capacity

1 TB

Interface

USB 3.2 Gen 2

Endurance (TBW)

600 TB

Warranty

5 Years ✓

3 Years

Score

9.0/10 ✓

7.5/10

Total Wins

3 wins

0 wins

Frequently Asked Questions

Which is better, Crucial X9 Pro 1TB or Lexar SL100 Pro 1TB?

The Crucial X9 Pro 1TB scores 9.0/10 compared to 7.5/10 for the Lexar SL100 Pro 1TB. Our expert analysis favors the Crucial X9 Pro 1TB for its superior speed.

What's the difference between Crucial X9 Pro 1TB and Lexar SL100 Pro 1TB?

The key differences: The Crucial X9 Pro 1TB offers 1,050 MB/s reads vs 950 MB/s for the Lexar SL100 Pro 1TB. Capacity options differ: Crucial X9 Pro 1TB is 1TB while Lexar SL100 Pro 1TB is 1TB. The Crucial X9 Pro 1TB uses USB 3.2 Gen 2 while the Lexar SL100 Pro 1TB uses USB 3.2 Gen 2.

Which is faster, Crucial X9 Pro 1TB or Lexar SL100 Pro 1TB?

The Crucial X9 Pro 1TB 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, Crucial X9 Pro 1TB or Lexar SL100 Pro 1TB?

The Crucial X9 Pro 1TB scores higher (9.0 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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