SSK Dual USB-C 128GB
Score: 73/100
Lexar D40E
Score: 78/100Rankings
Lexar's D40E 256 GB drive combines a dual-connector swivel metal housing with 256-bit AES encryption and strong sequential read performance. Write speeds can be inconsistent and the bulkier design reduces pocket-friendliness. Suited for photographers and videographers who value security and durability.
The SSK 128 GB dual USB-C/A drive promises ultra-fast 550 MB/s reads and a waterproof, shock-resistant metal case. In practice it overheats and can throttle, with hinge durability concerns. Fits casual photographers needing occasional high-speed transfers.
| Attribute | | |
|---|---|---|
128 GB | 256 GBbest | |
550 MB/sbest | 183 MB/s | |
520 MB/sbest | 45.8 MB/s | |
| ↓ lower better | 37 g | 26 gbest |
— | 3 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Storage(1) | ||
Storage Capacity (GB) | 128 GB | 256 GB |
Performance(2) | ||
Read Speed (MB/s) | 550 MB/s | 183 MB/s |
Write Speed (MB/s) | 520 MB/s | 45.8 MB/s |
Connectivity(2) | ||
USB Version | USB 3.2 Gen 2 | USB 3.2 Gen 1 |
Interface | USB-A 3.2 Gen 2 and USB-C 3.2 Gen 2 | USB Type-A, USB Type-C |
Build & Design(3) | ||
Weight (g) | 37 g | 26 g |
Dimensions (L×W×H) (mm) | 78.0×20.5×8.6 mm mm | 0.6693x0.4724x2.7559 mm |
Material | High-grade zinc alloy | Metal |
Products in the top-left offer the best value (high score, low price).
Professional reviewers, notably a Critical Reviews YouTube analysis, criticize the SSK drive for severe overheating, inconsistent sustained speeds, high power draw on iOS devices, and fragile USB-C hinge, concluding that despite its premium feel and advertised peak performance, the product suffers from reliability issues that outweigh its advantages.
Everyday users praise the dual-connector convenience and the solid, premium feel of the metal housing, but common complaints focus on rapid heating, speed throttling after short use, hinge durability problems, power-draw warnings on iPhone 15, and occasional early failures, making the drive suitable only for occasional light transfers.
Professional reviewers commend the Lexar D40E for its dual-connector convenience, sturdy metal swivel construction, and solid sequential read performance that meets the needs of photographers and videographers. However, they criticize its weak random write speeds and occasional inability to consistently hit the advertised 100 MB/s read rate, noting that the bulkier swivel mechanism makes it less sleek than competing models.
Everyday users generally like the plug-and-play ease, large 256 GB capacity, and rugged swivel design, calling it a handy on-the-go solution. Recurring complaints focus on slower-than-advertised write speeds and occasional compatibility issues with older devices.
“Convenient swivel for no-cap loss and quick large-file moves.”
“Slower-than-expected writes for videos/documents and occasional compatibility hiccups on older devices.”
