Yes Lando95 mfillpot is right you can do anything you want with SATA drives set in a raid array. You can partition the drives into multiple partitions and have your OS on one partition and the others for storage or what ever. You can all so use the SATA drives separately as a single drives.
You just have to set them up right that depending on your mobo it can be easy or a little tricky but if you need more help since I don’t know your level of computer knowledge. I have been setting arrays up for a long time and I can get as much speed out of them as possible like OCing hard drives lol. If it can’t run fast then it shouldn’t run at all lol. Just a little Ocing humor
Regards
Brent
Hope this helps and remember if you need more help setting your drives up just ask.