
SSK Portable SSD
Score: 80/100
SanDisk Portable SSD
Score: 78/100Rankings

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.

SanDisk Extreme Portable 1TB SSD combines IP55 protection, shock-proof construction, and NVMe speeds up to 560 MB/s in a compact form factor. Heat during sustained transfers and a higher price are notable trade-offs. Best for on-the-go professionals needing rugged, reliable storage.
| Attribute | ![]() | ![]() |
|---|---|---|
1,024 GBbest | 1 GB | |
1,050 MB/sbest | 800 MB/s | |
1,000 MB/sbest | 501 MB/s | |
| ↓ lower better | 30 gbest | 41 g |
3 yearsbest | 3 yearsbest | |
1.22 m | 2 mbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Power(1) | ||
Power Source | USB | Bus-powered |
Connectivity(2) | ||
Interface | USB 3.2 Gen 2/Gen 2x2 | USB 3.2 |
OS Compatibility | Windows 7+, macOS 10.11+, Linux, Android, iOS (OTG) | Windows, macOS |
Build & Design(3) | ||
Weight (g) | 30 g | 41 g |
Dimensions (L×W×H) (mm) | 12x37x68 mm | 47×47×10 mm mm |
Drop Resistance (m) | 1.22 m | 2 m |
Accessories(1) | ||
Included Accessories | USB-C to C cable, USB-C to A cable, protective pouch | USB-C cable |
Storage(1) | ||
Capacity (GB) | 1024 GB | 1 GB |
Performance(2) | ||
Sequential Read Speed (MB/s) | 1050 MB/s | 800 MB/s |
Sequential Write Speed (MB/s) | 1000 MB/s | 501 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 consistently highlight the SanDisk Extreme Portable's rugged IP55 construction, fast NVMe-based performance, and strong value proposition at the 1 TB price point. While they commend its smart design and cross-platform ease of use, they note that the price is higher than some rivals and that small-file transfer performance can lag behind larger sequential transfers.
Everyday users praise the drive's portability, speed, and durability, especially for on-location work and travel. Common praise centers on its ruggedness and value, while recurring complaints focus on heat buildup, the short supplied cable, slower small-file transfers, and occasional long-term reliability issues.
“Plug-and-play ease across devices (PC/Mac/Android/iOS)”

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

“hands-down one of the best external SSDs on the market”


