If your system has a backplane, then you will need to remove it OR have a RAID card installed for it to connect to. If your system does not have a backplane, then you can cable SATA drives directly to the motherboard. If you don't have a RAID card, then you can NOT use SAS drives. You should never use the S-series controllers, they are garbage. Use the PERC H700 for RAID (SAS or SATA) or the H200 if you need non-RAID SAS.
I have just bought a second and T3 10. It doesn't look like it has an s300 or similar raid controller in it. I just want to use it as storage for a TB of information so don't need full raid do I need a raid controller and if so so which one does everyone recommend. My current t310 has an on S s300perc6i Thanks
No raid controller