Can I buy an adapter from laptop m.2 to sata SSD?

Where are you going to house another SATA SSD in a laptop chassis? The main reason there's only one SATA port for SSDs/HDDs is that there is not enough space to house more than one.

As said above you can buy adapters but it's also not explained if you're simply using the motherboard in a different chassis or how you plan to put two SATA SSDs in a laptop.

It would be better to just get an external SSD that plugs in through USB.
 
Mmm, the link to that amazon is not what I need....

I need m.2 source on laptop mother board to connect to standard SATA ssd, reason is I share the drives with desktop, can put 2 sad on laptop with modifications