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Associate II
December 31, 2025
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Is this a genuine ST-Link?

  • December 31, 2025
  • 2 replies
  • 677 views

Originally a comment on the How to recognize a genuine ST-LINK/V2 versus a cloned one Knowledge Base article.

Moved to main forum for better visibility / discussion.


I bought this  ST-LINK V2 on Amazon ( see pictures) . I don't think its' a genuine STM device. STM32CubeIDE and STM32CubeProgrammer recognize it but No STM32 target is found ( STM32L051K8U6)

I notice that my ST-Link V2 does not provide clock signal on pin 9 (SWCLK) 

I'm using VT ref pin, SWDIO pin, SWDCLK pin, GND pin and RST pin.



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Best answer by Andrew Neil

@Fabrice44 wrote:

 

I bought this  ST-LINK V2 on Amazon ( see pictures)


Amazon is not an ST Distributor - so that alone almost certainly means it's a fake.

You can find official ST Distributors here:

https://www.st.com/content/st_com/en/contact-us.html 

2 replies

mƎALLEm
ST Technical Moderator
December 31, 2025

@Fabrice44 

According the pictures you shared especially this one:

mALLEm_0-1767180046863.png

that's not a genuine ST-LINK but it's a copy of it.

The genuine one has this look and feel:

mALLEm_0-1767180127661.png

 

To give better visibility on the answered topics, please click "Best answer" on the reply which solved your issue or answered your question.
Andrew Neil
Andrew NeilBest answer
Super User
December 31, 2025

@Fabrice44 wrote:

 

I bought this  ST-LINK V2 on Amazon ( see pictures)


Amazon is not an ST Distributor - so that alone almost certainly means it's a fake.

You can find official ST Distributors here:

https://www.st.com/content/st_com/en/contact-us.html 

A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.