SDKINGSTON STORAGE
Need both USB-A and USB-C in a drive that barely takes up pocket space?
The Kingston DataTraveler microDuo 3C shrinks the classic dual-connector flash drive down small, while still giving you both connector types in one unit. At 128GB with read speeds up to 200 MB/s, it's fast enough for real work.

A Middle-Ground Capacity for Two Kinds of Ports
A protective cap over the Type-C end keeps the connector safe in transit. Backed by Kingston's 5-year warranty, it's a dependable middle-ground capacity for anyone who splits time between USB-A desktops and USB-C laptops or phones.
Key Features
- 128GB of storage in a reduced-size, dual-connector body
- USB 3.2 Gen 1 interface with read speeds up to 200 MB/s
- USB Type-A and Type-C connectors built into the same compact drive
- Durable plastic cap protects the Type-C connector during transit
- Small enough to carry on a keyring without feeling bulky
- Compatible with desktops, laptops, and USB-C mobile devices
- Kingston 5-year limited warranty
Full Specifications
| Specification |
Detail |
| Brand |
Kingston |
| Model / Part Number |
DTDUO3CG3/128GB |
| GTIN/UPC |
740617328165 |
| Capacity |
128GB |
| Interface |
USB 3.2 Gen 1 |
| Read Speed |
Up to 200 MB/s |
| Connectors |
USB-A and USB-C (dual-sided) |
| Dimensions |
1.18" x 0.7" x 0.33" |
| OS Support |
Windows, macOS, Linux, Chrome OS, Android (OTG) |
| Warranty |
5-year limited warranty (Kingston) |
What's in the Box
- Kingston DataTraveler microDuo 3C 128GB flash drive
Frequently Asked Questions
What's the difference between this and the swiveling DataTraveler Duo you also sell?
Both are dual-connector drives with USB-A and USB-C; the microDuo 3C uses a smaller reduced-size body with a removable protective cap on the Type-C end, while the DataTraveler Duo uses a larger swiveling body.
Can I lose the cap and still use the drive?
The cap protects the Type-C connector from dust and damage, but the drive will still function without it, just handle the exposed connector with more care.
How do you erase a USB flash drive?
Formatting is the fastest way to erase everything on this drive — in Windows, right-click it in File Explorer and select Format; on macOS, use Disk Utility's Erase function. Either method wipes existing files so you can reuse the full 128GB.
How many GB flash drive do I need?
For documents and photos, 32-64GB is typically enough; video libraries or full phone/system backups usually call for 128GB or more, which is what this drive offers.
Genuine, new-in-box Kingston product backed by manufacturer warranty, fast US shipping, and secure checkout.