Here we have the drivers for ASUS X550LN for Windows 7 64-bit Operating system. Actually drivers are for this exact model: X550LX-DM126D, but it should the most fit for the X550LN series. This laptop is intended to work with Windows 8 and 8.1 (there are drivers on the official site only for this operating systems), but we install Windows 7 and work very well, probably even better.

The whole package of drivers is zipped in one file that you can download from this link: