
Crucial X6 1TB
Score: 34/100
SanDisk Extreme 2TB
Score: 87/100Rankings

The SanDisk 2TB Extreme Portable SSD combines high-speed NVMe performance with rugged IP65 protection and 3 m drop resistance, making it a strong choice for creators and field professionals. It adds hardware encryption for security, though some users report early failures and legacy software.

The Crucial X6 1TB is an affordable, ultra-light portable SSD with decent everyday performance, but its QLC NAND and DRAM-less architecture prevent it from delivering the high sustained speeds some users expect.
| Attribute | ![]() | ![]() |
|---|---|---|
1,000 GB | 2,000 GBbest | |
540 MB/s | 1,050 MB/sbest | |
212 MB/s | 1,000 MB/sbest | |
| ↓ lower better | 40 gbest | 51 g |
36 months | 60 monthsbest | |
| ↓ lower better | — | 85 °Cbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Capacity(1) | ||
Storage Capacity (GB) | 1000 GB | 2000 GB |
Performance(2) | ||
Sequential Read Speed (MB/s) | 540 MB/s | 1050 MB/s |
Sequential Write Speed (MB/s) | 212 MB/s | 1000 MB/s |
Security(1) | ||
Hardware Encryption | false | true |
Build & Design(2) | ||
Weight (g) | 40 g | 51 g |
Form Factor | portable | Portable |
Warranty(1) | ||
Warranty Period (months) | 36 months | 60 months |
Power & Connectivity(2) | ||
Power Source | bus-powered | Bus-powered |
Included Cable Type | USB-C to USB-C | USB-C to USB-C, USB-C to USB-A |
Compatibility(1) | ||
Operating System Compatibility | Windows, macOS, Android, iOS, consoles | Windows 8, Windows 10, macOS v10.9+, USB 3.0, USB 2.0 |


Products in the top-left offer the best value (high score, low price).

Professional reviewers consider the X6 a serviceable, budget-friendly portable SSD that works well for everyday tasks but is hampered by its SATA-based internals and DRAM-less design, recommending PCIe-based alternatives for power users.
Consumers appreciate the X6's reliability, pocket-size convenience, and price, though many note that real-world speeds fall short of the advertised 800 MB/s and that performance drops after the cache is exhausted.

Professional reviewers rate the drive 4.5/5, praising its blazingly fast transfers, rugged IP65 construction, and strong security, while noting its larger size and legacy software.
Everyday users overwhelmingly praise the speed, ruggedness, and plug-and-play ease, often calling it a reliable workhorse for on-location work. Recurring complaints focus on occasional early failures, adapter connectivity glitches, and the presence of unwanted software.
“smaller than car keys”

“perfect for travel”

“Crucial SSDs have never failed me.”


