
SanDisk Extreme PRO
Score: 87/100
Crucial X9
Score: 86/100Rankings

The SanDisk Extreme PRO Portable SSD 1TB delivers flagship-level 2000 MB/s speeds in a rugged, IP65-rated aluminum case. Its premium price and only 128-bit encryption may deter budget-focused buyers. Ideal for creators and professionals needing ultra-fast, durable portable storage.

The Crucial X9 1TB Portable SSD offers ultra-compact size, IP55 protection and 1050 MB/s read/write speeds in a lightweight 32 g package. It lacks the higher ruggedness of some competitors and its sustained write performance trails a bit behind. Best for mobile professionals and gamers who need fast, portable storage with basic protection and bundled backup software.
| Attribute | ![]() | ![]() |
|---|---|---|
1,000 GBbest | 1,000 GBbest | |
2,000 MB/sbest | 1,050 MB/s | |
2,000 MB/sbest | 1,050 MB/s | |
| ↓ lower better | 77.5 g | 32 gbest |
5 yearsbest | 3 years | |
3 mbest | 2.3 m |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
General(1) | ||
Warranty (years) | 5 years | 3 years |
Power(1) | ||
Power Source | USB bus-powered | USB |
Connectivity(1) | ||
Interface | USB 3.2 Gen 2 x2 | USB 3.2 Gen 2 |
Build & Design(3) | ||
Weight (g) | 77.5 g | 32 g |
Dimensions (L×W×H) (mm) | 110.7×57.9×10.4 mm mm | 10x50x65 mm |
Drop Resistance (m) | 3 m | 2.3 m |
Accessories(1) | ||
Included Accessories | Carabiner Loop | SSD, USB Type-C to C cable |
Storage(1) | ||
NAND Type | WD 64-Layer 3D TLC | 3D NAND |
Performance(2) | ||
Sequential Read Speed (MB/s) | 2000 MB/s | 1050 MB/s |
Sequential Write Speed (MB/s) | 2000 MB/s | 1050 MB/s |
Features(1) | ||
IP Rating | IP65 | IP55 |


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

KitGuru and other professional reviewers conclude that the Extreme PRO Portable SSD lives up to its premium positioning, delivering top-tier transfer speeds, a rugged yet compact design, and strong security features, making it a go-to choice for content creators and mobile professionals who need reliable, high-speed storage.
The source data does not contain direct consumer reviews, so everyday user sentiment cannot be directly assessed; the product is marketed toward professionals and creators, suggesting positive expectations for speed and durability.

Professional reviewers commend the X9 for its ultra-small footprint, strong read performance and drop-proof design, noting it as a convenient, high-speed solution for mobile professionals. However, they point out that its sustained write speeds lag slightly behind rivals and that the lack of an IP rating makes it less rugged than competing models like the Samsung T7 Shield.
Everyday users highlight the drive's fast read speeds, pocket-size convenience, and seamless plug-and-play experience across a wide range of devices. The main concerns expressed are the scarcity of user reviews, the absence of an official IP rating, and minor confusion over the exact weight listed in different sources.
