The world's smallest USB 3.0 key. Up to 128 GB.


Extremely small, up to 128 GB
Metal resistant, waterproof
Fast USB 3.0 (120Mb /s)
Windows and Mac Compatible

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Extremely small, up to 128 GB

With its 1.2 cm³, the K'1 is the smallest USB 3.0 flash drive in the world.
You want to add 128 GB of memory in your computer ? Plug it on and forget it. With its 5 mm thickness, you can store your computer in your bag without removing it. K'1 would also be very convenient plugged to your USB TV or you car radio.

Ultra fast 120 MB / s

Very small, yet very fast: the K'1 is 4 times faster than any conventional USB 2.0 flash drive. You will need a few seconds only to copy a movie to your USB 3.0 computer.

Aluminum body designed to last

The aluminum metal body is made from a single piece. Its architecture and the material choice make the K'1 very solid, ready to endure any shock even while being carried in your bag plugged in your computer.
A string snap allows you to clip it everywhere without losing it.

Synchronize & back up your data easily

You can use PK-FileSync software to synchronize your computer with one of your own cloud (sync). You can also set an automatic backup of all your precious documents on your flash drive (mirror), or synchronize a folder video to your flash drive before connecting it to your TV or your Box (auto-sync). Download PK-FileSync

Get the smallest one

Technical Specifications


100303 : 32 GB
100304 : 64 GB
100305 : 128 GB (discontinued product)


USB 3.0 (USB 2.0 compatible)




16,8 x 16 x 7 mm / 0,66 x 0,63 x 0,27 in.


3 g / 0,11 oz

Weight with packaging

26 g / 0,92 oz


IP57 - 3 meters / 9,84 feet

System requirements

Computer with USB slot (USB 3.0 optimised)
Latest version of Windows® XP, Windows Vista®, Windows 7/8/10, Mac® OS X 10.6/7/8, Linux


PK K'1, little lace to clip it


2 years


Reading : 120 MB/s
Writing : 20 MB/s


N°1 du Top 10 des clefs : Petit bijou de technologie. 1,2 cm³ et 3 grammes d’ingénierie et de génie. Un mini-must ! Lire la suite

« La plus petite clé USB 3.0 au monde »…
est françaiseLire la suite

Other press publications on the 
press page
All visual and video materials : available for download



Download PK-FileSync 7.2:
Mac - Windows - OpenSUSE - Ubuntu - Debian - CentOS

once your PK-FileSync is installed on your computer, you can synchronize, backup or copy your data between your PC and your flash drive, in manual or automatic mode : sync mode (source folder), mirroring (creates a backup clone), backup (copy to the destination directory and updates the changed files). You can also trigger such actions automatically when you plug the USB flash drive using PK-RealTimeSync (auto-sync).

A simple user guide lets you quickly learn the software.
Ideal to synchronize your PC's desktop with one of the house by synchronizing to a cloud (sync), or save all your precious documents on your flash drive (mirror), or to synchronize a video file on your flash drive before connecting to your TV or Box (auto-sync).


34,99 €