As an Amazon Associate I earn from qualifying purchases. We may earn a commission from qualifying purchases made through links on this page. Prices and availability are subject to change. We are reader-supported and independent — our rankings are based on an objective scoring rubric, not sponsorship.

Crucial X9 Pro vs WD My Passport SSD Portable 4TB — Which Portable SSD Is Faster & Better Value?

Compare Crucial X9 Pro and WD My Passport SSD Portable 4TB side by side. Both are 1TB USB 3.2 Gen 2 external SSDs, but they differ in speed, design, and value. Here's how they stack up.

Our Pick

Crucial

Crucial X9 Pro

8.9/10

Ultra-compact pro-grade portable SSD. Pocket-sized at just 65g. Ideal for mobile professionals.

Extremely compact and lightweight (65g)

IP55 water and dust resistance

Drop-proof up to 2 meters

Check on Amazon →

Western Digital

WD My Passport SSD Portable 4TB

8.7/10

A 4TB My Passport SSD portable — same physical package as the 1TB/2TB but with the 4TB die stack. The biggest single-portable WD ships and one of the few 4TB portable SSDs at retail, period. Compares closely with the Samsung T7 4TB.

4TB slim form factor

2400 TBW endurance

AES hardware encryption

Check on Amazon →

Spec Comparison

Spec

Crucial X9 Pro

WD My Passport SSD Portable 4TB

Read Speed

1.1 GB/s

Write Speed

1.0 GB/s

Capacity

1 TB

4 TB ✓

Interface

USB 3.2 Gen 2

Endurance (TBW)

440 TB

2,400 TB ✓

Warranty

3 Years

Score

8.9/10 ✓

8.7/10

Total Wins

1 win

2 wins

Frequently Asked Questions

Which is better, Crucial X9 Pro or WD My Passport SSD Portable 4TB?

The Crucial X9 Pro scores 8.9/10 compared to 8.7/10 for the WD My Passport SSD Portable 4TB. Our expert analysis favors the Crucial X9 Pro for its superior value.

What's the difference between Crucial X9 Pro and WD My Passport SSD Portable 4TB?

The key differences: The Crucial X9 Pro offers 1,050 MB/s reads vs 1,050 MB/s for the WD My Passport SSD Portable 4TB. Capacity options differ: Crucial X9 Pro is 1TB while WD My Passport SSD Portable 4TB is 4TB. The Crucial X9 Pro uses USB 3.2 Gen 2 while the WD My Passport SSD Portable 4TB uses USB 3.2 Gen 2.

Which is faster, Crucial X9 Pro or WD My Passport SSD Portable 4TB?

Both drives offer the same 1,050 MB/s read speeds.

Which has better value, Crucial X9 Pro or WD My Passport SSD Portable 4TB?

The Crucial X9 Pro scores higher (8.9 vs 8.7/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

More Comparisons

Crucial X9 Pro vs Samsung T9 Portable SSD → WD My Passport SSD Portable 4TB vs Samsung T9 Portable SSD →

Crucial X9 Pro vs Samsung T9 Portable 4TB → WD My Passport SSD Portable 4TB vs Samsung T9 Portable 4TB →

Crucial X9 Pro vs Crucial X10 Pro Portable 4TB → WD My Passport SSD Portable 4TB vs Crucial X10 Pro Portable 4TB →

Crucial X9 Pro vs Sabrent Rocket Nano V2 → WD My Passport SSD Portable 4TB vs Sabrent Rocket Nano V2 →