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LaCie Rugged SSD 1TB vs SSK PM510 USB4 1TB — Which External SSD Is Faster & Better Value?

Compare LaCie Rugged SSD 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.

LaCie

LaCie Rugged SSD 1TB

8.6/10

The non-Pro Rugged SSD keeps the IP67 orange-rubber body but drops the Thunderbolt controller for USB 3.2 Gen 2. For photographers and documentarians whose laptops don't have Thunderbolt anyway, this is the right compromise at a much lower price than the Pro.

IP67 rugged body

1050-class Gen 2 speeds

5-year warranty + Rescue

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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

LaCie Rugged SSD 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

5 Years ✓

3 Years

Score

8.6/10

Total Wins

1 win

2 wins

Frequently Asked Questions

Which is better, LaCie Rugged SSD 1TB or SSK PM510 USB4 1TB?

Both drives score 8.6/10 in our expert testing. The best choice depends on your specific needs.

What's the difference between LaCie Rugged SSD 1TB and SSK PM510 USB4 1TB?

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

Which is faster, LaCie Rugged SSD 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 LaCie Rugged SSD 1TB. That's a 237% speed advantage.

Which has better value, LaCie Rugged SSD 1TB or SSK PM510 USB4 1TB?

Both drives score the same in our evaluation. Consider features, endurance, and warranty to determine which suits your needs better.

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