Crucial X9 Pro 4TB
Score: 94/100
Crucial X10 Pro 4TB
Score: 95/100Rankings
The Crucial X10 Pro 4TB Portable SSD delivers up to 2100/2000 MB/s via USB-C 20 Gbps, IP55 ruggedness and 256-bit AES encryption, but its performance is limited by the need for a Gen 2x2 port and some users report early failures.
The Crucial X9 Pro 4TB delivers fast, secure, and rugged portable storage in a tiny package, though users note the short cable and lack of a USB-A adapter.
| Attribute | | |
|---|---|---|
4,000 GBbest | 4,000 GBbest | |
1,050 MB/s | 2,100 MB/sbest | |
1,050 MB/s | 2,000 MB/sbest | |
5 yearsbest | 5 yearsbest | |
| ↓ lower better | 38 gbest | 42 g |
| ↓ lower better | 10 mmbest | — |
| ↓ lower better | 65 mmbest | 65 mmbest |
| ↓ lower better | 50 mmbest | 50 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance(3) | ||
Interface | USB 3.2 Gen 2 | USB 3.2 Gen 2x2 (USB-C) |
Sequential Read Speed (MB/s) | 1050 MB/s | 2100 MB/s |
Sequential Write Speed (MB/s) | 1050 MB/s | 2000 MB/s |
Compatibility(1) | ||
Supported Operating Systems | Windows, macOS, Linux, Android, iPadOS, Xbox, PlayStation | Windows, Mac, Linux, Android, iPadOS, Xbox, PlayStation, ChromeOS |
Storage(1) | ||
NAND Type | TLC | 3D TLC |
Build & Design(1) | ||
Weight (g) | 38 g | 42 g |
Products in the top-left offer the best value (high score, low price).
Professional reviewers rate the X9 Pro highly, calling it a tiny, near-perfect external SSD with sturdy frame and hardware encryption, while noting it falls short of the X10 Pro's top-tier speeds.
Everyday users appreciate its pocket-sized form factor, fast transfers, and rugged build, but complain about missing accessories and occasional speed gaps.
Professional reviewers praise the X10 Pro for its blistering sequential speeds, pocket-size form factor and rugged IP55 construction, but caution that the USB 3.2 Gen 2x2 interface is increasingly obsolete and note reliability concerns.
Everyday users are split: many love the drive's speed, tiny size and encryption, while a sizable minority report early failures and frustration with limited speeds on Apple devices.
“perfect for travel”
“easy to carry on a keychain”
“lack of a USB-A adapter is a frequent frustration”
Choose X10 Pro if you need top-tier USB 3.2 Gen 2x2 speeds and have compatible devices; otherwise X9 Pro offers better portability and compatibility.
