Crucial X10 Pro 4TB
Score: 95/100
Corsair EX400U 2TB
Score: 74/100Rankings
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 Corsair EX400U is an ultra-compact USB4 SSD delivering some of the fastest portable read speeds on the market and a unique MagSafe feature for iPhone creators, though it lacks ruggedness and full write-speed potential.
| Attribute | | |
|---|---|---|
4,000 GBbest | 2,048 GB | |
2,100 MB/s | 4,000 MB/sbest | |
2,000 MB/s | 3,600 MB/sbest | |
5 yearsbest | 3 years | |
| ↓ lower better | 42 gbest | 92 g |
| ↓ lower better | — | 11.9 mmbest |
| ↓ lower better | 65 mm | 64.3 mmbest |
| ↓ lower better | 50 mmbest | 64 mm |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance(3) | ||
Interface | USB 3.2 Gen 2x2 (USB-C) | USB4 |
Sequential Read Speed (MB/s) | 2100 MB/s | 4000 MB/s |
Sequential Write Speed (MB/s) | 2000 MB/s | 3600 MB/s |
Warranty & Support(1) | ||
Warranty Period (years) | 5 years | 3 years |
Compatibility(1) | ||
Supported Operating Systems | Windows, Mac, Linux, Android, iPadOS, Xbox, PlayStation, ChromeOS | Windows, macOS, iOS |
Storage(2) | ||
Storage Capacity (GB) | 4000 GB | 2048 GB |
NAND Type | 3D TLC | TLC |
Power(1) | ||
Power Source | Bus-powered | USB-C PD |
Build & Design(3) | ||
Weight (g) | 42 g | 92 g |
Length (mm) | 65 mm | 64.3 mm |
Width (mm) | 50 mm | 64 mm |
Products in the top-left offer the best value (high score, low price).
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.
Professional reviewers praise the EX400U's groundbreaking speed, tiny form factor, and MagSafe integration, while noting the write-speed shortfall, modest endurance, and absence of encryption or rugged features.
Users love the lightning-fast transfers and iPhone attachment, but express concerns about write-speed limits, durability, and lack of encryption.
“Incredibly fast and small - perfect for travel.”
“No issues with editing 4K video directly from the drive.”
“Multiple users report drive failures within a year.”
