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External SSDs

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

Compare LaCie Rugged SSD Pro 2TB and SSK PM510 USB4 1TB side by side. Both are 2TB Thunderbolt 3 external SSDs, but they differ in speed, design, and value. Here's how they stack up.

Our Pick

LaCie

LaCie Rugged SSD Pro 2TB
9.1/10

The 2TB Rugged SSD Pro doubles capacity of the iconic Thunderbolt 3 rugged drive. The standard field drive for outdoor wedding, extreme-sports, and news videographers who need both real-time 6K editing and a drive that survives a sandstorm.

Thunderbolt 3 2700 MB/s
IP67 rugged
5-year Rescue
Check on Amazon →

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
LaCie Rugged SSD Pro 2TB
SSK PM510 USB4 1TB
Read Speed
2.7 GB/s
3.2 GB/s ✓
Write Speed
1.9 GB/s
2.8 GB/s ✓
Capacity
2 TB ✓
1 TB
Interface
Thunderbolt 3
USB4
Endurance (TBW)
1,200 TB ✓
600 TB
Warranty
5 Years ✓
3 Years
Score
9.1/10 ✓
8.6/10
Total Wins
4 wins
2 wins

Frequently Asked Questions

Which is better, LaCie Rugged SSD Pro 2TB or SSK PM510 USB4 1TB?
The LaCie Rugged SSD Pro 2TB scores 9.1/10 compared to 8.6/10 for the SSK PM510 USB4 1TB. Our expert analysis favors the LaCie Rugged SSD Pro 2TB for its superior value.
What's the difference between LaCie Rugged SSD Pro 2TB and SSK PM510 USB4 1TB?
The key differences: The LaCie Rugged SSD Pro 2TB offers 2,700 MB/s reads vs 3,200 MB/s for the SSK PM510 USB4 1TB. Capacity options differ: LaCie Rugged SSD Pro 2TB is 2TB while SSK PM510 USB4 1TB is 1TB. The LaCie Rugged SSD Pro 2TB uses Thunderbolt 3 while the SSK PM510 USB4 1TB uses USB4.
Which is faster, LaCie Rugged SSD Pro 2TB or SSK PM510 USB4 1TB?
The SSK PM510 USB4 1TB is faster with 3,200 MB/s read speeds compared to 2,700 MB/s for the LaCie Rugged SSD Pro 2TB. That's a 19% speed advantage.
Which has better value, LaCie Rugged SSD Pro 2TB or SSK PM510 USB4 1TB?
The LaCie Rugged SSD Pro 2TB scores higher (9.1 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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