sandisk sd6p1m-128g-1002 replacement for Asus ultrabook UX301L

Hi I need to replace my ssd card in my Asus UX301L.

The SSD that is currently installed is sandisk sd6p1m-128g-1002 , however I can’t buy this anywhere.

Could you please advise if there is another option that is compatible with my laptop.

Thanks in advance