Just got a system that was a huge upgrade to my laptop and have a few questions. throwing some fg at ya

What cords do i need to purchase to hook up two more hard drives to the mobo? There are like 8 hdd slots and I kind of need more space. I have another ssd and a hdd. Could someone link me?

i have the i5 4690k overclocked and liquid cooled, and the system is currently running a r9 270 (don't know why). I would like to upgrade the gpu. What would you suggest?
I was thinking of the r9 480 which i can grab for like ~120-140

i picked up the entire system for 200 bucks so please don't flame about buying used

you want a sata cable. theres no difference between sata 2 and 3 in reguards to the cables.
480 or 1060 or 970, if you can get a 1070 or 980ti imo.

Could you link me to them? What is the difference between the big plug and small plug ?

smaller sata cable is for data
larger one is for power and comes from the power supply unit.

https://www.newegg.com/Product/ProductList.aspx?Submit=ENE&DEPA=0&Order=BESTMATCH&Description=sata+cable&ignorear=0&N=100168424&isNodeId=1