Zarmst USB-C 4-in-1 Flash Drive 256GB Blue
Score: 69/100
Lexar JumpDrive Dual Drive D400
Score: 76/100Rankings
Lexar's D400 128 GB dual-drive features a metal swivel housing, keyring loop, and built-in 256-bit AES encryption, delivering read speeds up to 130 MB/s. Write performance is slower and limited user reviews make reliability uncertain. Perfect for professionals requiring secure, cross-device file transfers.
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 | 128 GB | |
80 MB/s | 130 MB/sbest | |
30 MB/s | 52 MB/sbest | |
| ↓ lower better | 32 g | 17.8 gbest |
— | 5 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Storage(1) | ||
Storage Capacity (GB) | 256 GB | 128 GB |
Performance(2) | ||
Read Speed (MB/s) | 80 MB/s | 130 MB/s |
Write Speed (MB/s) | 30 MB/s | 52 MB/s |
Connectivity(2) | ||
USB Version | USB 3.0 | USB 3.2 Gen 1 |
Interface | Lightning, Micro USB, USB-C, USB-A | USB Type-C, USB Type-A (swivel) |
General(1) | ||
OS Compatibility | iPhone, iPad, Android (OTG), PC, Mac | Android, Windows, macOS |
Build & Design(3) | ||
Weight (g) | 32 g | 17.8 g |
Dimensions (L×W×H) (mm) | 42.93×22.10×5.08 mm mm | 4.0x0.4x5.45 mm |
Material | Aluminum frosted | Metal |
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.
Tech reviewers consider the Lexar D400 a solid, secure option for users who need a durable, dual-connector flash drive. Its high read speeds and metal swivel design receive praise, while the relatively slow write performance and limited consumer feedback are noted as drawbacks.
Limited feedback; the few available sources provide no recurring praise or complaints, leaving reliability uncertain.
