By the way, did you measure the 17W or is that an advertisement figure? I found precise energy consumption values to be really hard to find and sometimes overoptimistic. Unfortunately not many people look at this, so its often not advertised and if it is it may not always be true, because not many people check that.
A shame one cant easily replace the harddrive of a Buffaloo. It would be tempting to place 2.5” drive in with an adapter and then have a 10W unit.
I didn’t measure the energy consumption; I got the specification from the Buffalo website.