SSK Portable SSD
Score: 80/100
Crucial X9 Pro
Score: 81/100Rankings
The Crucial X9 Pro for Mac 1TB delivers Mac-optimized performance of up to 1050 MB/s in a tiny, IP55-rated aluminum case with strong 256-bit encryption. Its 10 Gbps USB 3.2 Gen 2 interface caps peak throughput below newer 20 Gbps models, and the IP rating is modest compared with IP65 rivals. Ideal for Mac-centric creators and travelers who value portability and native compatibility.
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 | 38 g |
3 years | 5 yearsbest | |
1.22 m | 2 mbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
General(1) | ||
Warranty (years) | 3 years | 5 years |
Power(1) | ||
Power Source | USB | USB bus-powered |
Connectivity(2) | ||
Interface | USB 3.2 Gen 2/Gen 2x2 | USB 3.2 Gen 2 Type-C |
OS Compatibility | Windows 7+, macOS 10.11+, Linux, Android, iOS (OTG) | Apple devices, Windows, Android, iPad, Linux, PS4, PS5, Xbox |
Build & Design(3) | ||
Weight (g) | 30 g | 38 g |
Dimensions (L×W×H) (mm) | 12x37x68 mm | 65×50×9.91 mm mm |
Drop Resistance (m) | 1.22 m | 2 m |
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 Pro for its ultra-compact, lightweight design and Mac-specific firmware, calling it a sweet-spot SSD that balances performance, size, and price.
Everyday users overwhelmingly praise the X9 Pro's portability, lightweight feel, and seamless Mac compatibility, reflected in a high overall rating. The consensus highlights its suitability for travel, field work, and creative workflows, with few complaints surfacing.
“Plug-and-play ease across devices (PC/Mac/Android/iOS)”
“High-res photos and videos transfer in seconds, feels premium in hand”
