Zarmst USB-C 4-in-1 Flash Drive 256GB Blue
Score: 69/100
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 ZARMST 256 GB 4-in-1 flash drive offers a versatile multi-connector design and an encryption app, making cross-platform storage convenient. However, its real-world transfer speeds fall short of claims and it can become hot during use. Best suited for users needing occasional backups across devices.
| Attribute | | |
|---|---|---|
256 GBbest | 256 GBbest | |
80 MB/s | 183 MB/sbest | |
30 MB/s | 45.8 MB/sbest | |
| ↓ lower better | 32 g | 26 gbest |
— | 3 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance(2) | ||
Read Speed (MB/s) | 80 MB/s | 183 MB/s |
Write Speed (MB/s) | 30 MB/s | 45.8 MB/s |
Connectivity(2) | ||
USB Version | USB 3.0 | USB 3.2 Gen 1 |
Interface | Lightning, Micro USB, USB-C, USB-A | USB Type-A, USB Type-C |
Build & Design(3) | ||
Weight (g) | 32 g | 26 g |
Dimensions (L×W×H) (mm) | 42.93×22.10×5.08 mm mm | 0.6693x0.4724x2.7559 mm |
Material | Aluminum frosted | Metal |
Software(1) | ||
Included Software | EasyFlash Pro | Encryption software |
Products in the top-left offer the best value (high score, low price).
Professional reviewers commend the ZARMST drive for its versatile 4-in-1 connector layout, compact thumb-drive form factor, and the security-focused app that adds encryption and fingerprint unlocking. However, they criticize the gap between advertised and real-world speeds, heat generation during transfers, case-related compatibility issues, and raise doubts about the true usable capacity and overall build durability.
Everyday users love the convenience of a single drive that works across iPhone, Android and computers, especially the one-click backup app and the ability to move large media files via USB 3.0. Recurring complaints focus on slower-than-expected transfer speeds, the device heating up, incompatibility with phones in cases, and uncertainty about whether the full 256 GB is actually usable.
“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.”
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.
