Looks like it checks all the blocks–up to 128 GB of RAM in RDIMMs, dual 10 GbE onboard, six SATA onboard (as well as one m.2 which appears to be shared with the first SATA, so you can use either one but not both), IPMI with HTML5 KVM.
The Xeon-D is a pretty low-power part; I can measure mine on the Kill-A-Watt once my RDIMM arrives (which should be today) to get an idle power number.
Note this uses DDR4 RDIMMs, which may not be “super cheap,” but are still pretty cheap for the capacity.