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

Compare LaCie Rugged SSD 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.

Our Pick

LaCie

LaCie Rugged SSD 2TB

8.7/10

The 2TB non-Pro Rugged SSD keeps the orange armor but doubles the storage capacity. A common pick for outdoor photographers who shoot medium-format RAW and need the IP67 rating more than the Pro model's Thunderbolt speeds.

2TB + IP67 rugged

1050-class Gen 2

5-year 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 2TB

SSK PM510 USB4 1TB

Read Speed

950 MB/s

3.2 GB/s ✓

Write Speed

950 MB/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

5 Years ✓

3 Years

Score

8.7/10 ✓

8.6/10

Total Wins

4 wins

2 wins

Frequently Asked Questions

Which is better, LaCie Rugged SSD 2TB or SSK PM510 USB4 1TB?

The LaCie Rugged SSD 2TB scores 8.7/10 compared to 8.6/10 for the SSK PM510 USB4 1TB. Our expert analysis favors the LaCie Rugged SSD 2TB for its superior value.

What's the difference between LaCie Rugged SSD 2TB and SSK PM510 USB4 1TB?

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

Which is faster, LaCie Rugged SSD 2TB 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 2TB. That's a 237% speed advantage.

Which has better value, LaCie Rugged SSD 2TB or SSK PM510 USB4 1TB?

The LaCie Rugged SSD 2TB scores higher (8.7 vs 8.6/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

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