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External SSDs

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LaCie Rugged SSD Pro 4TB vs Netac ZX1 2TB — Which External SSD Is Faster & Better Value?

Compare LaCie Rugged SSD Pro 4TB and Netac ZX1 2TB side by side. Both are 4TB 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 4TB
9.2/10

A 4TBThunderbolt 3 portable — uniquely huge for this speed tier. The Rugged SSD Pro 4TB fills a slot nothing else really does: 4TB of fast external storage that's actually rugged, not just claimed to be.

Thunderbolt 3 + 4TB
IP67 + 3m drop + 1-ton crush
5-year Rescue
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Netac

Netac ZX1 2TB
7.6/10

The 2TB ZX1 doubles both capacity and SLC cache budget. Budget pricing holds — among the most affordable 2TB Gen 2x2 portables at retail. Buyers should temper expectations on sustained writes after the SLC cache exhausts.

Gen 2x2 2000/1800 MB/s
Budget pricing
2400 TBW
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Spec Comparison

Spec
LaCie Rugged SSD Pro 4TB
Netac ZX1 2TB
Read Speed
2.7 GB/s ✓
2.0 GB/s
Write Speed
1.9 GB/s ✓
1.8 GB/s
Capacity
4 TB ✓
2 TB
Interface
Thunderbolt 3
USB 3.2 Gen 2x2
Endurance (TBW)
2,400 TB ✓
1,200 TB
Warranty
5 Years ✓
3 Years
Score
9.2/10 ✓
7.6/10
Total Wins
6 wins
0 wins

Frequently Asked Questions

Which is better, LaCie Rugged SSD Pro 4TB or Netac ZX1 2TB?
The LaCie Rugged SSD Pro 4TB scores 9.2/10 compared to 7.6/10 for the Netac ZX1 2TB. Our expert analysis favors the LaCie Rugged SSD Pro 4TB for its superior speed.
What's the difference between LaCie Rugged SSD Pro 4TB and Netac ZX1 2TB?
The key differences: The LaCie Rugged SSD Pro 4TB offers 2,700 MB/s reads vs 2,000 MB/s for the Netac ZX1 2TB. Capacity options differ: LaCie Rugged SSD Pro 4TB is 4TB while Netac ZX1 2TB is 2TB. The LaCie Rugged SSD Pro 4TB uses Thunderbolt 3 while the Netac ZX1 2TB uses USB 3.2 Gen 2x2.
Which is faster, LaCie Rugged SSD Pro 4TB or Netac ZX1 2TB?
The LaCie Rugged SSD Pro 4TB is faster with 2,700 MB/s read speeds compared to 2,000 MB/s for the Netac ZX1 2TB. That's a 35% speed advantage.
Which has better value, LaCie Rugged SSD Pro 4TB or Netac ZX1 2TB?
The LaCie Rugged SSD Pro 4TB scores higher (9.2 vs 7.6/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

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