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Crucial X8 2TB vs SSK PM510 USB4 1TB — Which External SSD Is Faster & Better Value?

Compare Crucial X8 2TB and SSK PM510 USB4 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.

Crucial

Crucial X8 2TB

8.4/10

A 2TB solid-aluminum Crucial X8 — a previous-generation premium drive that often goes on clearance at discount retailers. Worth it when the price beats the equivalent X9 Pro by $30+.

Aluminum unibody

1050/1000 MB/s sustained

3-year warranty

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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

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Spec Comparison

Spec

Crucial X8 2TB

SSK PM510 USB4 1TB

Read Speed

1.1 GB/s

3.2 GB/s ✓

Write Speed

1.0 GB/s

2.8 GB/s ✓

Capacity

2 TB ✓

1 TB

Interface

USB 3.2 Gen 2

USB4

Endurance (TBW)

1,200 TB ✓

600 TB

Warranty

3 Years

Score

8.4/10

8.6/10 ✓

Total Wins

2 wins

3 wins

Frequently Asked Questions

Which is better, Crucial X8 2TB or SSK PM510 USB4 1TB?

The SSK PM510 USB4 1TB scores 8.6/10 compared to 8.4/10 for the Crucial X8 2TB. Our expert analysis favors the SSK PM510 USB4 1TB for its superior speed.

What's the difference between Crucial X8 2TB and SSK PM510 USB4 1TB?

The key differences: The Crucial X8 2TB offers 1,050 MB/s reads vs 3,200 MB/s for the SSK PM510 USB4 1TB. Capacity options differ: Crucial X8 2TB is 2TB while SSK PM510 USB4 1TB is 1TB. The Crucial X8 2TB uses USB 3.2 Gen 2 while the SSK PM510 USB4 1TB uses USB4.

Which is faster, Crucial X8 2TB or SSK PM510 USB4 1TB?

The SSK PM510 USB4 1TB is faster with 3,200 MB/s read speeds compared to 1,050 MB/s for the Crucial X8 2TB. That's a 205% speed advantage.

Which has better value, Crucial X8 2TB or SSK PM510 USB4 1TB?

The SSK PM510 USB4 1TB scores higher (8.6 vs 8.4/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

More Comparisons

Crucial X8 2TB vs Samsung T9 2TB → SSK PM510 USB4 1TB vs Samsung T9 2TB →

Crucial X8 2TB vs Samsung T9 Portable SSD → SSK PM510 USB4 1TB vs Samsung T9 Portable SSD →

Crucial X8 2TB vs Crucial X10 Pro 2TB → SSK PM510 USB4 1TB vs Crucial X10 Pro 2TB →

Crucial X8 2TB vs Samsung T7 4TB → SSK PM510 USB4 1TB vs Samsung T7 4TB →