Question about SATA power supply on RADXA ROCK 5 ITX

Hi,

I wanted to know if there are any supply limits from the SATA power ports, the question is you can power 1 or more 3.5-inch NAS disks at the same time? Or as a precaution, I take power from the PSU?

Thanks,
Dany

The four SATA ports of Rock 5 ITX only allow data transfer and do not provide power.
In my case (and probably yours), power is provided by an ATX PSU (refurbished 80+ gold 300 W) as it is used as NAS with 3 mechanical 3"5 HDDs in RAID 5 mode. If You only plug the data ports, the drives simply dont spin: You have to connect the 4-pin MOLEX plugs of the drives to the PSU.
So, the difficult task is finally to find a compact low power PSU to get the most efficient solution and maybe add some power splitters or converters (MOLEX to SATA power converter if 2"5 drives are used). To feed 4 drives and the board at full load, 200W is almost too high…