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.

Lexar SL100 Pro 1TB vs SSK PM510 USB4 1TB

Compare Lexar SL100 Pro 1TB and SSK PM510 USB4 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.

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

SSK

SSK PM510 USB4 1TB

8.6/10

AUSB4 portable at enthusiast-grade specs — 3200 MB/s read over USB4 / Thunderbolt 4 hosts. The PM510 is one of the more affordable USB4 portables, an entry point for video editors who need Thunderbolt-class speeds but don't want to pay LaCie or OWC premium.

USB4 3200 MB/s

Thunderbolt 4 compatible

Aluminum body

Check on Amazon →

Spec Comparison

Spec

Lexar SL100 Pro 1TB

SSK PM510 USB4 1TB

Read Speed

950 MB/s

3.2 GB/s ✓

Write Speed

950 MB/s

2.8 GB/s ✓

Capacity

1 TB

Interface

USB 3.2 Gen 2

USB4

Endurance (TBW)

600 TB

Warranty

3 Years

Score

7.5/10

8.6/10 ✓

Total Wins

0 wins

3 wins

Frequently Asked Questions

Which is better, Lexar SL100 Pro 1TB or SSK PM510 USB4 1TB?

The SSK PM510 USB4 1TB scores 8.6/10 compared to 7.5/10 for the Lexar SL100 Pro 1TB. Our expert analysis favors the SSK PM510 USB4 1TB for its superior speed.

What's the difference between Lexar SL100 Pro 1TB and SSK PM510 USB4 1TB?

The key differences: The Lexar SL100 Pro 1TB offers 950 MB/s reads vs 3,200 MB/s for the SSK PM510 USB4 1TB. Capacity options differ: Lexar SL100 Pro 1TB is 1TB while SSK PM510 USB4 1TB is 1TB. The Lexar SL100 Pro 1TB uses USB 3.2 Gen 2 while the SSK PM510 USB4 1TB uses USB4.

Which is faster, Lexar SL100 Pro 1TB or SSK PM510 USB4 1TB?

The SSK PM510 USB4 1TB is faster with 3,200 MB/s read speeds compared to 950 MB/s for the Lexar SL100 Pro 1TB. That's a 237% speed advantage.

Which has better value, Lexar SL100 Pro 1TB or SSK PM510 USB4 1TB?

The SSK PM510 USB4 1TB scores higher (8.6 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 → SSK PM510 USB4 1TB vs Samsung T9 2TB →

Lexar SL100 Pro 1TB vs Samsung T9 Portable SSD → SSK PM510 USB4 1TB vs Samsung T9 Portable SSD →

Lexar SL100 Pro 1TB vs Crucial X10 Pro 2TB → SSK PM510 USB4 1TB vs Crucial X10 Pro 2TB →

Lexar SL100 Pro 1TB vs Samsung T7 4TB → SSK PM510 USB4 1TB vs Samsung T7 4TB →