
Crucial X6
Score: 74/100
SSK Portable SSD
Score: 80/100Rankings

The SSK SD500 1TB Portable SSD delivers up to 1050 MB/s read and 1000 MB/s write speeds in a compact aluminum shell, making it one of the faster USB-C SSDs on the market. Its performance tapers after the cache is exhausted and the drive can become hot under sustained loads. Ideal for mobile creators who need high burst speeds and a lightweight, drop-resistant design.

The Crucial X6 1TB is a lightweight, value-focused portable SSD with hardware encryption and solid drop resistance. Its modest 800 MB/s speed and lack of an IP rating limit its appeal for demanding or harsh-environment use. Best for travelers and casual users who prioritize portability and cost over top-tier performance.
| Attribute | ![]() | ![]() |
|---|---|---|
1,000 GB | 1,024 GBbest | |
800 MB/s | 1,050 MB/sbest | |
800 MB/s | 1,000 MB/sbest | |
| ↓ lower better | 40 g | 30 gbest |
3 yearsbest | 3 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Connectivity(1) | ||
Interface | USB 3.2 Gen 2 | USB 3.2 Gen 2x2 |
Performance(2) | ||
Sequential Read Speed (MB/s) | 800 MB/s | 1050 MB/s |
Sequential Write Speed (MB/s) | 800 MB/s | 1000 MB/s |
Build & Design(2) | ||
Weight (g) | 40 g | 30 g |
Dimensions (L×W×H) (mm) | 69.1×64.0×10.9 mm mm | 68×37×12 mm mm |
Storage(1) | ||
Capacity (GB) | 1000 GB | 1024 GB |
Power & Compatibility(2) | ||
Power Source | USB bus-powered | USB |
Compatible Operating Systems | PC, Mac, PS4, PS5, Xbox One, Xbox, Android, Windows 8.1+ | Windows, macOS, Linux, Android, iOS |
General(1) | ||
Included Accessories | USB‑C to USB‑A adapter | USB‑C to C cable, USB‑C to A cable, protective pouch |


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

Professional reviewers commend the X6 for its compact, lightweight build, broad compatibility, and solid durability, positioning it as a value-driven portable SSD.
Everyday users praise the X6's pocket-size portability, ease of use across multiple platforms, and durability, while noting slower transfer speeds and occasional reformatting needs.

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.
“Extremely portable and lightweight, lighter than my car keys.”

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

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


