k53u

Hi! My laptop charger is broken and I need to buy a new one. But I don't know what size of the charger/pin to choose..Please help my laptop is ASUS K53U 3.42A.. I also don't know what is the size of the plug/connector..

https://pcpartpicker.com/list/WYMQNN Can i get some feedback on this build, one of my biggest concerns is the case with a 280mm X62 Kraken if it will fit correctly or not this pc will be running three monitors used for Gaming(MMO/FPS) some streaming/video editing along with photo shop and...