Hi Mel
Sata raid controller can be configured with or without raid. These machines use a standard Intel chipset so support should be built in to Win 10.
Note the cash back is the V1 model, V2 model has 2x 5.25 external bays and no internal USB. Considered buying one however went for the Dell T20 as I wanted quad core xeon which increased the price of the HP quite a bit.