First Time building a pc

Dec 29, 2018
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So I am building my first gaming pc I already have one so this one is for my brother. The only thing he wants to do is play Fortnite and homework on it. I’m going on a budget for 300 dollars and I have managed to fit that price (not including case and cables and I got a mobo and hard drive wich i got from a friend who had a gaming pc he disassembled and gave me it’s micro atx mobo and hd ) at 299 alittle overboard is okay and at a push I think I can buy the computer for 350 if needed.

Specs:
Prime q270m-c mobo
Evga gtx 460
Intel celeron 4900
Lite on 120gb nvme m.2 storage
Western digital 1tb hd
FSP dagger 600w psu
Thermal take gravity cpu cooler
timetec Hynix IC 8gb (4x2gb) ram

My brother is fine with low settings but I’m wondering what cables I need and if this will even work. And if you are kind to find out what cables I need an amazon link would be appreciated.

Sorry for my terrible English btw I’m Swedish :D