Your adapter will never work unless you have a specific Nec laptop.

https://web.archive.org/web/20030314205437/ht … /0303/1201.html

note 16: Compatible memory is SD memory card / memory stick / smart media / multimedia card. Use by inserting it into the PC card slot.
However, this is a specially designed product that only works with LaVie M, which comes with this card adapter as standard.

a quote from one of the 4in1 adapter auctions:
The structure does not include a controller chip, only a wiring board, but the notebook PC itself is equipped with a controller chip that operates the memory card, and when it recognizes the PC-VP-BS01, it connects to the PC card interface. It seems like the mechanism is to input and output the signals of each memory card on the top and access the memory card.

Yuck.

lolo799 wrote on 2024-04-25, 17:05:

Your adapter will never work unless you have a specific Nec laptop. […]
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Your adapter will never work unless you have a specific Nec laptop.

https://web.archive.org/web/20030314205437/ht … /0303/1201.html

note 16: Compatible memory is SD memory card / memory stick / smart media / multimedia card. Use by inserting it into the PC card slot.
However, this is a specially designed product that only works with LaVie M, which comes with this card adapter as standard.

a quote from one of the 4in1 adapter auctions:
The structure does not include a controller chip, only a wiring board, but the notebook PC itself is equipped with a controller chip that operates the memory card, and when it recognizes the PC-VP-BS01, it connects to the PC card interface. It seems like the mechanism is to input and output the signals of each memory card on the top and access the memory card.

I have found very few information about this adapter, and the laptop actually. So i'll go the pcmicia to cf route. Thank you all for your help!