Kingston Digital Data Traveler Micro Duo
Score: 76/100
Zarmst USB-C 4-in-1 Flash Drive 256GB Blue
Score: 69/100Rankings
The Kingston DataTraveler Micro Duo 32 GB is a compact metal flash drive featuring dual USB-A and USB-C connectors and fast up-to-100 MB/s read speeds. Its modest 15 MB/s write speed and limited 32 GB capacity may restrict heavy-use scenarios. Ideal for travelers and photographers needing cross-platform convenience.
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 | | |
|---|---|---|
32 GB | 256 GBbest | |
100 MB/sbest | 80 MB/s | |
15 MB/s | 30 MB/sbest | |
| ↓ lower better | 28.58 gbest | 32 g |
5 yearsbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Storage(1) | ||
Storage Capacity (GB) | 32 GB | 256 GB |
Performance(2) | ||
Read Speed (MB/s) | 100 MB/s | 80 MB/s |
Write Speed (MB/s) | 15 MB/s | 30 MB/s |
Connectivity(2) | ||
USB Version | USB 3.1 | USB 3.0 |
Interface | Dual Type-A & Type-C | Lightning, Micro USB, USB-C, USB-A |
General(1) | ||
OS Compatibility | Windows, macOS, Linux, Chrome OS | iPhone, iPad, Android (OTG), PC, Mac |
Build & Design(3) | ||
Weight (g) | 28.58 g | 32 g |
Dimensions (L×W×H) (mm) | 29.94 x 16.60 x 8.44 mm mm | 42.93×22.10×5.08 mm mm |
Material | Metal | Aluminum frosted |
Products in the top-left offer the best value (high score, low price).
Professional reviewers commend the Kingston microDuo 3C for its dual-connector flexibility, solid metal build, and long warranty, noting that the USB 3.1 interface aligns with modern device standards. However, they criticize the modest 15 MB/s write speed and the limited 32 GB capacity, and they call for independent benchmark data to validate the claimed read performance.
Everyday users praise the drive's convenience, especially the ability to plug directly into both USB-A and USB-C ports without adapters, and they like its compact size and decent read speed. Recurring complaints focus on slow write speeds and the limited storage capacity, with some users wishing for more detailed specifications such as weight.
“saves the pain... with only USB C”
“good size and decent speed”
“works nice”
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.
