I want to get liquid cooling for my pc and i have the option to buy a touch screen that allows me to control the fans and see what temperature the computer is at. Is buying the touch screen a waste of money? ($29)
Get water cooling if you really want it, but it's usually quite expensive. I guess you would be getting a pre-built water cooler such as an H80 or H100, as opposed to building a water cooling system yourself.
I don't really know much about touch screens, but tbh i'd rather just get a good quality monitor for playing games
You probably won't need a sound card as the motherboard's on-board sound should be good enough
I don't know when the sales will stop, as I hadn't even noticed that there were any sales
For the motherboard that I am going to get (Gigabyte GA-970A-D3 -- AMD 970) I have the option to get a U3S6 USB 3.0 & SATA 3.0 PCI-E 2.0 x4 Expansion Card. What does this card do? Should I just leave it as it is and have the motherboard default usb / sata interface or get the expansion card?