  Sterile neutrinos produced through a resonant Shi-Fuller mechanism are
arguably the simplest model for a dark matter interpretation origin of the
recent unidentified X-ray line seen toward a number of objects harboring dark
matter. Here, I calculate the exact parameters required in this mechanism to
produce the signal. The suppression of small scale structure predicted by these
models is consistent with Local Group and high-$z$ galaxy count constraints.
Very significantly, the parameters necessary in these models to produce the
full dark matter density fulfill previously determined requirements to
successfully match the Milky Way Galaxy's total satellite abundance, the
satellites' radial distribution and their mass density profile, or "too big to
fail problem." I also discuss how further precision determinations of the
detailed properties of the candidate sterile neutrino dark matter can probe the
nature of the quark-hadron transition, which takes place during the dark matter
production.
