Since this SSD in Gen 3 & 500 GB and below link from Asus confirms that it will support the spec, I was wondering whether I should face any problem if I install this SSD to the laptoop.
Asus D509 laptop compatibility link: https://www.asus.com/au/Laptops/For-Home/Everyday-use/ASUS-D509/techspec/
Asus D509 laptop compatibility link: https://www.asus.com/au/Laptops/For-Home/Everyday-use/ASUS-D509/techspec/