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External SSDs

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LaCie Rugged SSD Pro 4TB vs SanDisk Extreme Pro Portable 1TB — Which External SSD Is Faster & Better Value?

Compare LaCie Rugged SSD Pro 4TB and SanDisk Extreme Pro Portable 1TB 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
Check on Amazon →

SanDisk

SanDisk Extreme Pro Portable 1TB
9.1/10

A 1050 MB/s portable SSD in an aluminum-and-rubber body with an IP55 dust/water rating. The Extreme Pro is the ruggedized competitor to the Samsung T7 Shield — headlining a 5-year warranty where Samsung offers 3, and including both USB-C-to-C and USB-C-to-A cables.

IP55 dust and water resistant
Aluminum chassis with rubber bumper
5-year warranty
Check on Amazon →

Spec Comparison

Spec
LaCie Rugged SSD Pro 4TB
SanDisk Extreme Pro Portable 1TB
Read Speed
2.7 GB/s ✓
1.1 GB/s
Write Speed
1.9 GB/s ✓
1.0 GB/s
Capacity
4 TB ✓
1 TB
Interface
Thunderbolt 3
USB 3.2 Gen 2
Endurance (TBW)
2,400 TB ✓
600 TB
Warranty
5 Years
5 Years
Score
9.2/10 ✓
9.1/10
Total Wins
5 wins
0 wins

Frequently Asked Questions

Which is better, LaCie Rugged SSD Pro 4TB or SanDisk Extreme Pro Portable 1TB?
The LaCie Rugged SSD Pro 4TB scores 9.2/10 compared to 9.1/10 for the SanDisk Extreme Pro Portable 1TB. 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 SanDisk Extreme Pro Portable 1TB?
The key differences: The LaCie Rugged SSD Pro 4TB offers 2,700 MB/s reads vs 1,050 MB/s for the SanDisk Extreme Pro Portable 1TB. Capacity options differ: LaCie Rugged SSD Pro 4TB is 4TB while SanDisk Extreme Pro Portable 1TB is 1TB. The LaCie Rugged SSD Pro 4TB uses Thunderbolt 3 while the SanDisk Extreme Pro Portable 1TB uses USB 3.2 Gen 2.
Which is faster, LaCie Rugged SSD Pro 4TB or SanDisk Extreme Pro Portable 1TB?
The LaCie Rugged SSD Pro 4TB is faster with 2,700 MB/s read speeds compared to 1,050 MB/s for the SanDisk Extreme Pro Portable 1TB. That's a 157% speed advantage.
Which has better value, LaCie Rugged SSD Pro 4TB or SanDisk Extreme Pro Portable 1TB?
The LaCie Rugged SSD Pro 4TB scores higher (9.2 vs 9.1/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

More Comparisons

LaCie Rugged SSD Pro 4TB vs Samsung T9 2TB → SanDisk Extreme Pro Portable 1TB vs Samsung T9 2TB →
LaCie Rugged SSD Pro 4TB vs Samsung T9 Portable SSD → SanDisk Extreme Pro Portable 1TB vs Samsung T9 Portable SSD →
LaCie Rugged SSD Pro 4TB vs Crucial X10 Pro 2TB → SanDisk Extreme Pro Portable 1TB vs Crucial X10 Pro 2TB →
LaCie Rugged SSD Pro 4TB vs Samsung T7 4TB → SanDisk Extreme Pro Portable 1TB vs Samsung T7 4TB →