Reddit reviews vahicle OBD2 16PIN Flat-Noodle OBD2 16Pin to DB9 Serial Port Adapter Cable OBDII to DB9 16Pin M to DB9 F RS232 Cable for Car Diagnostic Adapter 1.5m
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You've kept details to a minimum, so I'll do the guessing for you.
Google tells me a Cantact has a DB9 male connector. So if you want to connect the Cantact to your cars diagnostic port to send CAN frames, you'll need a cable like this:
https://www.amazon.com/Vahicle-Flat-Noodle-Serial-Adapter-Diagnostic/dp/B01LW2NRT0/ref=sr_1_1?s=automotive&ie=UTF8&qid=1506097307&sr=1-1&keywords=OBD-II+to+DB9+Cable
The cable you've posted is just an extension cable. Which If you've already got the DB9 to OBDII cable and are looking for more lenght, will work fine. But as I say, you didn't give many details so I'm guessing.
I would have thought the Cantact would have come with a cable?