
SanDisk Extreme Portable SSD 500GB USB-C
Score: 82/100
SSK Portable SSD
Score: 80/100Rankings

The SanDisk 500GB Extreme Portable SSD offers up to 1050 MB/s read and 1000 MB/s write speeds along with IP65 protection and 3 m drop resistance. Its performance is capped by the USB 3.2 Gen 2 interface and warranty terms can be confusing. Best suited for on-the-go creators who value durability and built-in encryption.

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 | ![]() | ![]() |
|---|---|---|
500 GB | 1,024 GBbest | |
1,050 MB/sbest | 1,050 MB/sbest | |
1,000 MB/sbest | 1,000 MB/sbest | |
| ↓ lower better | 39 g | 30 gbest |
3 yearsbest | 3 yearsbest | |
3 mbest | 1.22 m |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Power(1) | ||
Power Source | bus-powered | USB |
Connectivity(2) | ||
Interface | USB 3.2 Gen 2 | USB 3.2 Gen 2/Gen 2x2 |
OS Compatibility | Windows 10+, macOS 12+, iOS 13+, iPadOS 15+, Android 10+ | Windows 7+, macOS 10.11+, Linux, Android, iOS (OTG) |
Build & Design(3) | ||
Weight (g) | 39 g | 30 g |
Dimensions (L×W×H) (mm) | 85.09x50.8x9.91 mm mm | 12x37x68 mm |
Drop Resistance (m) | 3 m | 1.22 m |
Accessories(1) | ||
Included Accessories | USB-C cable, USB-C to A adapter, carabiner loop | USB-C to C cable, USB-C to A cable, protective pouch |
Storage(1) | ||
Capacity (GB) | 500 GB | 1024 GB |

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

Professional reviewers praise the Extreme Portable SSD for its fast NVMe-class read/write performance, rugged IP65 rating, and broad compatibility, noting it excels in demanding field environments. However, they caution that the USB 3.2 Gen 2 interface limits peak throughput and that warranty terms differ across model generations.
Everyday users consistently highlight the drive's compact size, rapid transfer speeds, and durability, often mentioning the convenience of the included cables and encryption software. The most common complaints revolve around speed variability on different host ports and occasional confusion over warranty length and exact dimensions.

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

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




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.