Genuine Asus VivoBook S14 fast charger powers at 65w and outputs at 19v 3.42a and will charge your Asus VivoBook laptop, make sure you always use an original Asus ac adapter for this notebook, 2 different styles of charger are available, this version is the square charging brick with separate power cable (which is supplied free), but also available and can be found at the bottom, is the ac adapter that has a plug fitted directly into the charging square, so no need for a power cord, both Asus S14 fast power adapters are the exact same specification and its just literally the design that is different.

Genuine Asus VivoBook S14 fast Ac adapter specification:
Power output: 19v 3.42a
Ac adapter power: 65w
Power input: 100-240v
Tip pin size: 4.0mm * 1.35mm (Asus new micro pin)
Asus charger p/n: PA-1650-78, ADP-65 and more new part numbers to follow.
Asus Ac adapter warranty: 12months
Contents: Genuine Asus S14 fast laptop charger with built in mains plug
Key points of this Asus VivoBook S14 fast charger
Fits wide range of Asus notebooks, laptops and VivoBook
UK supplier with stock in the UK
Next day delivery available
Worldwide delivery available
Free power cord included
12 months warranty as standard
Genuine Asus VivoBook S14 fast charger