As an Amazon Associate I earn from qualifying purchases. We may earn a commission from qualifying purchases made through links on this page. Prices and availability are subject to change. We are reader-supported and independent — our rankings are based on an objective scoring rubric, not sponsorship.

Crucial X9 Pro 2TB vs Lexar SL100 Pro 1TB — Which External SSD Is Faster & Better Value?

Compare Crucial X9 Pro 2TB and Lexar SL100 Pro 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.

Our Pick

Crucial

Crucial X9 Pro 2TB

9.1/10

The 2TB X9 Pro keeps the same sustained-write profile as the 1TB but with double the cache budget before throttle. A cost-effective workhorse drive for anyone editing directly off external storage.

Real TLC NAND

5-year warranty

Doubles sustained-write cache size

Check on Amazon →

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 →

Spec Comparison

Spec

Crucial X9 Pro 2TB

Lexar SL100 Pro 1TB

Read Speed

1.1 GB/s ✓

950 MB/s

Write Speed

950 MB/s

Capacity

2 TB ✓

1 TB

Interface

USB 3.2 Gen 2

Endurance (TBW)

1,200 TB ✓

600 TB

Warranty

5 Years ✓

3 Years

Score

9.1/10 ✓

7.5/10

Total Wins

5 wins

0 wins

Frequently Asked Questions

Which is better, Crucial X9 Pro 2TB or Lexar SL100 Pro 1TB?

The Crucial X9 Pro 2TB scores 9.1/10 compared to 7.5/10 for the Lexar SL100 Pro 1TB. Our expert analysis favors the Crucial X9 Pro 2TB for its superior speed.

What's the difference between Crucial X9 Pro 2TB and Lexar SL100 Pro 1TB?

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

Which is faster, Crucial X9 Pro 2TB or Lexar SL100 Pro 1TB?

The Crucial X9 Pro 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, Crucial X9 Pro 2TB or Lexar SL100 Pro 1TB?

The Crucial X9 Pro 2TB scores higher (9.1 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

Crucial X9 Pro 2TB vs Samsung T9 2TB → Lexar SL100 Pro 1TB vs Samsung T9 2TB →

Crucial X9 Pro 2TB vs Samsung T9 Portable SSD → Lexar SL100 Pro 1TB vs Samsung T9 Portable SSD →

Crucial X9 Pro 2TB vs Crucial X10 Pro 2TB → Lexar SL100 Pro 1TB vs Crucial X10 Pro 2TB →

Crucial X9 Pro 2TB vs Samsung T7 4TB → Lexar SL100 Pro 1TB vs Samsung T7 4TB →