For DIY NAS devices I think you need to spend more ($128 USD) and get something like the APU 2 http://www.pcengines.ch/apu2c4.htm and add more SATA ports with the mini PCI express slots.
I got a banana-pi m3 but the onboard sata is now just a USB bridge :(
I got a banana-pi m3 but the onboard sata is now just a USB bridge :(