
SanDisk Extreme 1TB USB-C
Score: 79/100
Crucial X9
Score: 86/100Rankings

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.

The SanDisk 1TB Extreme Portable SSD delivers fast 550 MB/s reads and 1000 MB/s writes in a rugged IP55-rated case, making it ideal for on-the-go creators. Its trade-offs include a slightly heavier body and performance that can be limited by the host's USB capabilities. Best suited for photographers and videographers needing durable, high-speed portable storage.
| Attribute | ![]() | ![]() |
|---|---|---|
1,024 GBbest | 1,000 GB | |
550 MB/s | 1,050 MB/sbest | |
1,000 MB/s | 1,050 MB/sbest | |
| ↓ lower better | 40.8 g | 32 gbest |
3 yearsbest | 3 yearsbest | |
— | 2.3 mbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Power(1) | ||
Power Source | Bus powered | USB |
Connectivity(1) | ||
OS Compatibility | iOS, Android, macOS, Windows | Windows, macOS, Android, iOS, iPadOS, Linux, Xbox, PlayStation, ChromeOS |
Build & Design(2) | ||
Weight (g) | 40.8 g | 32 g |
Dimensions (L×W×H) (mm) | 96.3×49.5×8.9 mm mm | 10x50x65 mm |
Accessories(1) | ||
Included Accessories | USB‑C to USB‑C cable, USB‑C to USB‑A adapter | SSD, USB Type-C to C cable |
Storage(1) | ||
Capacity (GB) | 1024 GB | 1000 GB |
Performance(2) | ||
Sequential Read Speed (MB/s) | 550 MB/s | 1050 MB/s |
Sequential Write Speed (MB/s) | 1000 MB/s | 1050 MB/s |


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

Professional reviewers consistently commend the Extreme Portable SSD for its rugged IP55 build and high sequential speeds, noting that it enables smooth 4K video playback and rapid off-loading in demanding environments, while also appreciating the inclusion of necessary cables for immediate deployment.
Consumers echo the professional praise, emphasizing the drive's speed, compactness, and durability for travel, though a common theme is that real-world performance can be limited by the host device's USB capabilities.

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.
“smoother playback”

“perfect for saving/editing high-res photos/videos”


