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External SSDs

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Crucial X6 4TB vs SanDisk Extreme Pro 4TB

Compare Crucial X6 4TB and SanDisk Extreme Pro 4TB side by side. Both are 4TB USB 3.2 Gen 2 external SSDs, but they differ in speed, design, and value. Here's how they stack up.

Crucial

Crucial X6 4TB
8.2/10

A 4TB external at the X6's price is closer to spinning-rust economics than to typical SSD pricing. The 800 MB/s cap doesn't matter when the use case is video archive or photo-library cold storage — this drive is bought for capacity first, speed second.

4TB at budget-friendly price
PS5/Xbox cold-library compatible
Cool-running
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Our Pick

SanDisk

SanDisk Extreme Pro 4TB
9.2/10

Extreme 4TB portable SSD with 2000MB/s speeds and IP55 rating. The ultimate high-capacity drive for professionals on the go.

4TB capacity with 2000MB/s read and write
IP55 water and dust resistance
5-year warranty
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Spec Comparison

Spec
Crucial X6 4TB
SanDisk Extreme Pro 4TB
Read Speed
800 MB/s
2.0 GB/s ✓
Write Speed
800 MB/s
2.0 GB/s ✓
Capacity
4 TB
4 TB ✓
Interface
USB 3.2 Gen 2
USB 3.2 Gen 2x2
Endurance (TBW)
2,400 TB ✓
1,200 TB
Warranty
3 Years
5 Years ✓
Score
8.2/10
9.2/10 ✓
Total Wins
1 win
5 wins

Frequently Asked Questions

Which is better, Crucial X6 4TB or SanDisk Extreme Pro 4TB?
The SanDisk Extreme Pro 4TB scores 9.2/10 compared to 8.2/10 for the Crucial X6 4TB. Our expert analysis favors the SanDisk Extreme Pro 4TB for its superior speed.
What's the difference between Crucial X6 4TB and SanDisk Extreme Pro 4TB?
The key differences: The Crucial X6 4TB offers 800 MB/s reads vs 2,000 MB/s for the SanDisk Extreme Pro 4TB. Capacity options differ: Crucial X6 4TB is 4TB while SanDisk Extreme Pro 4TB is 4TB. The Crucial X6 4TB uses USB 3.2 Gen 2 while the SanDisk Extreme Pro 4TB uses USB 3.2 Gen 2x2.
Which is faster, Crucial X6 4TB or SanDisk Extreme Pro 4TB?
The SanDisk Extreme Pro 4TB is faster with 2,000 MB/s read speeds compared to 800 MB/s for the Crucial X6 4TB. That's a 150% speed advantage.
Which has better value, Crucial X6 4TB or SanDisk Extreme Pro 4TB?
The SanDisk Extreme Pro 4TB scores higher (9.2 vs 8.2/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

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