
Kingston DataTraveler SE9 256GB
Score: 73/100
Kingston DataTraveler DuoG2 256GB
Score: 64/100Rankings

The Kingston DataTraveler SE9 G3 256 GB is a premium, all-metal USB-A flash drive delivering fast read speeds and solid build quality, though its write speed is lower and warranty period shorter than older models.

The Kingston DataTraveler DuoG2 256 GB delivers versatile dual-connector functionality and ample storage in a compact plastic body, backed by a five-year warranty, though it lacks encryption and may feel slower than expected.
| Attribute | ![]() | ![]() |
|---|---|---|
256 GBbest | 256 GBbest | |
220 MB/sbest | — | |
100 MB/sbest | — | |
60 monthsbest | 60 monthsbest | |
| ↓ lower better | 15 g | 10 gbest |
| ↓ lower better | 38.1 mmbest | 64 mm |
| ↓ lower better | 12.7 mmbest | 21.2 mm |
| ↓ lower better | 5.1 mm | 1 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Physical(5) | ||
Weight (g) | 15.0 g | 10 g |
Length (mm) | 38.1 mm | 64 mm |
Width (mm) | 12.7 mm | 21.2 mm |
Height (mm) | 5.1 mm | 1 mm |
Material | metal | Plastic |


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

Professional reviewers describe the SE9 G3 as a premium upgrade with efficient performance and robust metal protection, highlighting its blazing-fast read speeds and refined design.
Everyday users praise the speed and metal construction, while noting the gold finish shows fingerprints and the write speed can be slower in practice.

Professional reviewers describe the DuoG2 as an innovative and versatile flash drive that solves the compatibility gap between legacy USB-A and modern USB-C devices. They highlight its dual-connector design, cap-less sliding mechanism, and Kingston's reliable brand reputation, while noting that it is positioned as a practical, no-frills tool rather than a high-performance or secure storage solution.
Everyday users praise the drive for its convenience, ease of use, and sufficient capacity, noting that it works seamlessly across multiple platforms. Common complaints focus on slower transfer speeds than expected, the plastic build quality, occasional cap stiffness, and the absence of security features.
“Transferring 20GB of files takes under 4 minutes.”

“The gold finish can show fingerprints and minor scratches over time.”

“Fast read performance makes it great for large media files.”
