10W is just the motherboard. The whole thing pulls 25-30W at idle with 6 HDDs (10 TB WD Red). The measurement was with a kill-a-watt at the wall. The motherboa

10W is just the motherboard. The whole thing pulls 25-30W at idle with 6 HDDs (10 TB WD Red). The measurement was with a kill-a-watt at the wall. The motherboard has a SuperMicro "proprietary" 12V connector (that they give you the pinout for and the connector housing) that can be used instead of the 24 pin ATX connector (populate one or the other). It has some regulators onboard to supply 5V for the hard drive logic. I'm using a 120W 12V laptop brick. Xeon-D is really neat as it has 10G NICs and SAS on-die with the CPU and run at really low power since there's no chipset (except the ASPEED IPMI). I'm waiting for some nice EPYC embedded boards (they also have on-die 10G) before upgrading. Except the eval board, I've only seen them with quad 1G interfaces. https://www.supermicro.com/en/products/motherboard/X10SDV-8C-TLN4F https://www.supermicro.com/en/products/motherboard/X10SDV-8C... It's fanless, but if your airflow is bad it'll overheat under load, I just zip tied a 60mm Noctua fan to it (NF-A6x25). I have it in a Fractal Node 304 case. It's nice and compact and fits on a shelf in the closet.