
SanDisk Extreme PRO
Score: 87/100
SSK Portable SSD
Score: 80/100Rankings

The SanDisk Extreme PRO Portable SSD 1TB delivers flagship-level 2000 MB/s speeds in a rugged, IP65-rated aluminum case. Its premium price and only 128-bit encryption may deter budget-focused buyers. Ideal for creators and professionals needing ultra-fast, durable portable storage.

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 | ![]() | ![]() |
|---|---|---|
1,000 GB | 1,024 GBbest | |
2,000 MB/sbest | 1,050 MB/s | |
2,000 MB/sbest | 1,000 MB/s | |
| ↓ lower better | 77.5 g | 30 gbest |
5 yearsbest | 3 years | |
3 mbest | 1.22 m |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
General(1) | ||
Warranty (years) | 5 years | 3 years |
Power(1) | ||
Power Source | USB bus-powered | USB |
Connectivity(1) | ||
Interface | USB 3.2 Gen 2 x2 | USB 3.2 Gen 2/Gen 2x2 |
Build & Design(4) | ||
Weight (g) | 77.5 g | 30 g |
Dimensions (L×W×H) (mm) | 110.7×57.9×10.4 mm mm | 12x37x68 mm |
Drop Resistance (m) | 3 m | 1.22 m |
Enclosure Material | Forged Aluminum | Aluminum alloy |
Accessories(1) | ||
Included Accessories | Carabiner Loop | USB-C to C cable, USB-C to A cable, protective pouch |
Storage(1) | ||
Capacity (GB) | 1000 GB | 1024 GB |
Performance(2) | ||
Sequential Read Speed (MB/s) | 2000 MB/s | 1050 MB/s |
Sequential Write Speed (MB/s) | 2000 MB/s | 1000 MB/s |


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

KitGuru and other professional reviewers conclude that the Extreme PRO Portable SSD lives up to its premium positioning, delivering top-tier transfer speeds, a rugged yet compact design, and strong security features, making it a go-to choice for content creators and mobile professionals who need reliable, high-speed storage.
The source data does not contain direct consumer reviews, so everyday user sentiment cannot be directly assessed; the product is marketed toward professionals and creators, suggesting positive expectations for speed and durability.

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

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

