I am going to build a home server for personal backups of my PC's and phones, can you check my build?

Here are the parts:

• Intel Celeron G3900 Boxed

• ASRock H110M-ITX

• 2x Seagate Barracuda, 1TB (RAID 1)

• Cooler Master Elite 130

• Crucial CT8G4DFD8213

• be quiet! Pure Power 10 300W

I will be running FreeNas, thanks for helping!