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::>Storage devices > 2015 > 07 > Kingston DataTraveler microDuo 3C

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Flash drive Kingston DataTraveler microDuo 3C: review and testing

Meet a flash drive Kingston DataTraveler microDuo 3C, which is one of the first storage devices, equipped with a new connector USB 3.1 Type-C.

Kingston DataTraveler microDuo 3C

This standard was approved in summer of 2013, but the first versions of its practical implementation appeared recently. The most famous among them are the Apple MacBook, the second generation of Chromebook Pixel from Google, as well as tablet Nokia N1.

Kingston DataTraveler microDuo 3C


Carrying capacity

Alternative title

USB 2.0

480 Мb/s

High Speed

USB 3.0

5 Gb/s


USB 3.1 Gen 1

5 Gb/s


USB 3.1 Gen 2

10 Gb/s


There are two generations of USB 3.1, which differ in capacity: for USB 3.1 Gen 1 it is a 5 Gb/s, and for USB 3.1 Gen 2 it’s 10 Gb/s. The second generation is quite popular now. Also, USB 3.1 interface can transfer power up to 100 W.

Kingston DataTraveler microDuo 3C

USB Micro-B (micro-USB), Lightning, USB Type-C, Mini DisplayPort, USB Type-A 

The appearance of the new standard means the arrival of the new connector USB Type-C, which in terms of size is little more than the usual micro-USB (Micro-B). However, if in the characteristics of the device you have met references about support USB Type-C, it is not necessary to automatically hope the bandwidth 10 Gb/s, as this format can realize not only USB 3.1, but also USB 3.0 and USB 2.0 which have a much lower speed capabilities. For example, the above mentioned Apple Macbook and Google Chromebook Pixel have ports USB Type-C with a capacity of 5 Gb/s, well, a manufacturer of tablet Nokia N1 decided to limit the features of USB 2.0 with a bandwidth of 480 Mb/s.

Kingston DataTraveler microDuo 3C

Kingston DataTraveler microDuo 3C

USB Type-C has an important advantage: as the well-known Lightning from Apple, it can be connected by every side, as it is a balanced connector. In contrast to micro and mini-USB, where the contacts are in a certain order, which did not allow any connection to the other side, in USB Type-C this problem was solved by a simple duplication of contacts. According to the diagram above, contact groups are wired mirror that allows you to connect the device "upside down". Besides the design must withstand 10 000 connections, which makes it more reliable.

Kingston DataTraveler microDuo 3C

Kingston DataTraveler microDuo 3C

Another analogy can be drawn between USB Type-C and Thunderbolt: both of them are capable of transmitting not only data, but also video. That is, the USB Type-C can also be used in alternate mode, because it has four pairs of high-speed Super Speed USB, two of which can be allocated for the standard DisplayPort, which is enough to transfer the image in the resolution of 4K Ultra HD.

Kingston DataTraveler microDuo 3C

Of course, the user faces with a compatibility problem, because USB Type-C is a new format, so it is not directly compatible with other types of connectors. However, the manufacturers have taken care of this by providing a very wide range of different adapters. Some of them, for example, Kingston released drives with two ports: USB Type-C and more common USB Type-A. And this flash drive will be described in this review.

Kingston DataTraveler microDuo 3C

The specs of Kingston DataTraveler microDuo 3C:

Producer and model

Kingston DataTraveler microDuo 3C 



USB 3.1 Type-C

USB 3.1 Type-A (backward compatible with USB 3.0 and 2.0)

Capacity, GB

64 (DTDUO3C/64GB)

32 (DTDUO3C/32GB)

16 (DTDUO3C/16GB)



Case material


Dimensions, mm

29,94 x 16,60 x 8,44

Operating temperature, °C


Storage temperature, °C


Warranty, years


OS compatibility

Windows 8.1 / 8 / 7 / Vista

Mac OS Х 10.7.x or above

Linux 2.6.х or above


Producer website

Product page

As you can see, the manufacturer offers three versions of the device, different from each other in terms of memory capacity (16, 32 and 64 GB) and a write speed: 10 MB/s for the 16 GB version and 15 MB/s for the other two. As for color design, the new product is available only in silver.


Kingston DataTraveler microDuo 3C

The tested flash drive comes in the traditional blister pack, which allows to evaluate the appearance of the flash drive before buying. The front side of the package contains the name of the manufacturer, model, and memory capacity. The new product has a high-speed USB 3.1 interface with two different connectors: Type-A and Type-C. In the lower part there is information about the five-year warranty, as well as the high-speed characteristics of the device: read 100 MB/s and write 15 MB/s.

Kingston DataTraveler microDuo 3C

On the reverse side of the package is the same information about the design and interface of the flash drive. In addition, there is a list of supported operating systems.


Kingston DataTraveler microDuo 3CKingston DataTraveler microDuo 3C

The case of Kingston DataTraveler microDuo 3C is made of metal. On one side it has the connector USB 3.1 Type-A, and on the other USB 3.1 Type-C. The design of the rotary cap helps to protect a connector USB 3.1 Type-C, however, it cannot prevent the ingress of dust and dirt into the second connector.


Kingston DataTraveler microDuo 3C

As you can see, the body doesn’t have any marking. Here is only a hole in the top for a keychain or a chain.

Kingston DataTraveler microDuo 3C

According to a report of the program Flash Drive Information Extractor, the device uses TLC-memory chip produced by Toshiba and running by controller Phison PS2307.

Kingston DataTraveler microDuo 3C

Ease of use OF Kingston DataTraveler microDuo 3C is high, since the drive is very compact and won’t burden the user during operation or transportation. However, case doesn’t have any LED-indicators.

File system

Kingston DataTraveler microDuo 3C

On default flash drive Kingston DataTraveler microDuo 3C has a file system FAT32, which has a limit on the maximum capacity of a single file (4GB). Moreover, its effective capacity is 31.45 GB or 29.2 GiB.

Kingston DataTraveler microDuo 3C

After formatting the flash drive into file system NTFS, you have 95 MB reserved for its needs. However, in connection with the above restriction in the file system FAT32, for drive of 32 GB it is more logical to use NTFS or exFAT.

Kingston DataTraveler microDuo 3C

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