Re: can i add extra graphic card with my psu 650wat Aerocool
Yeah i think so "Aero cool" is a crappy psu and though it does only have 1 connector of gpu, i did'nt make attention to that 
is this the psu
https://aerocool.io/product/aero-bronze-650w/
adding this adapter would let you do a second 1060
https://www.amazon.com/CableCreation-GeForce-Gigabyte-Sapphire-Graphics/dp/B078W7W8L2/ref=sr_1_1_sspa?
clock the gpu to 80 watts or so. you should be fine.