MegaSCSI interfaces

https://www.allekabels.nl/

Edit: oh, a specific unusual connector. That might be difficult, you’ll probably have to make it yourself.

I bought a few of those cables from yahoo auctions via Buyee and maybe Ebay. The used micro db 50 connector did not get much use outside of Japan. You have to be careful to get the correct cable.
sometimes the SCSI connector is called "half pitch amphenol 50 pin"

A.s an example this as a male-female cable with the correct connector (but probably not the cable you are looking for).
https://www.ebay.co.uk/itm/SCSI-Kabel-0-9m-C50-Male-MICRO-Centronics-C50-Female-MICRO-Centronics-beige/193415169146?hash=item2d0871447a:g:RPcAAOSwAppejepb

Thanks for your answers GDX and Lintweaker but :

@ Lintweaker : Right cable but it is a extension cable, but the connector male is ok, the other side must for example a DB 25 or centronics 50 pins.

@ GDX: Think this is a SCSI 1 cable

Thanks a lot. I have order one