The is a graphics processing unit (GPU) codename, not a retail product name. It is a mid-range Fermi 2.0 chip manufactured by Nvidia on a 40nm process.
Mobile GF106 variants (GT 540M, GT 555M) sometimes require modded INF files to bypass NVIDIA’s driver whitelist. Sites like provide modded .inf files that allow desktop drivers (391.35) to install on laptops. Use with caution. nvidia gf106 driver
NVIDIA officially classified all as Legacy (End-of-Life) in April 2018 . This means: The is a graphics processing unit (GPU) codename,