How to choose a cable for Sony Vaio S?

Question

laptops

Hello.
I got a laptop, model SV-S13A2V9R/A.
The problem is that I want to stick an SSD in it.
But I don't have a loop.
And a Google search gives part number - A1921021A.
But there is a suspicion that this is slightly from a different model.
Q: How to find the correct number?
ZY: A train that connects the mother and the disk. Not the one for the additional drive in the DVD bay.