Asus X555L Laptop: Replace or upgrade the hard disk / SSD - YouTube
Amazon.com: 2nd M.2 NGFF SSD Caddy Internal Cooling Radiator Fan Cooler for Asus Laptop X555LN X555D X555DA X550V X550VX X750 X555DA X751M X751L X541 X541N X541U, Second Solid State Drive CD DVD