
SSK Portable SSD
Score: 80/100
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 SSK SD500 1TB Portable SSD delivers fast 1050/1000 MB/s performance in a tiny 12×37×68 mm, 30 g aluminum shell. Its sustained write speed falls after the cache is exhausted and it can become noticeably warm. Ideal for mobile creators who need quick bursts of speed and a compact, low-cost solution.
| Attribute | ![]() | ![]() |
|---|---|---|
1,024 GBbest | 1,000 GB | |
1,050 MB/sbest | 1,050 MB/sbest | |
1,000 MB/s | 1,050 MB/sbest | |
| ↓ lower better | 30 gbest | 32 g |
3 yearsbest | 3 yearsbest | |
1.22 m | 2.3 mbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Connectivity(2) | ||
Interface | USB 3.2 Gen 2/Gen 2x2 | USB 3.2 Gen 2 |
OS Compatibility | Windows 7+, macOS 10.11+, Linux, Android, iOS (OTG) | Windows, macOS, Android, iOS, iPadOS, Linux, Xbox, PlayStation, ChromeOS |
Build & Design(3) | ||
Weight (g) | 30 g | 32 g |
Dimensions (L×W×H) (mm) | 12x37x68 mm | 10x50x65 mm |
Drop Resistance (m) | 1.22 m | 2.3 m |
Accessories(1) | ||
Included Accessories | USB-C to C cable, USB-C to A cable, protective pouch | SSD, USB Type-C to C cable |
Storage(1) | ||
Capacity (GB) | 1024 GB | 1000 GB |
Performance(1) | ||
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 commend the SSK SD500 1TB for its impressive benchmark numbers-exceeding 1 GB/s in both read and write under optimal USB 3.2 Gen 2x2 conditions-and its solid aluminum build with drop resistance. They also note its broad OS compatibility, UASP/TRIM support, and value-for-money pricing, while cautioning that sustained writes dip after the cache is exhausted and the unit runs hotter than some rivals during long transfers.
Everyday users love the drive's plug-and-play simplicity, feather-light feel, and the speed boost for high-resolution media, often highlighting the included pouch and cables as a plus. Recurring complaints focus on the device heating up during extended copies, real-world speeds falling short of the advertised peak, and the smaller usable capacity caused by formatting and large allocation units.

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.
“Plug-and-play ease across devices (PC/Mac/Android/iOS)”

“High-res photos and videos transfer in seconds, feels premium in hand”


