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(abridged) We report on multi-wavelength measurements of Swift J1753.5-0127in the hard state at L=2.7e36 erg/s (assuming d=3 kpc) in 2014. The radioemission is optically thick synchrotron, presumably from a compact jet. We takeadvantage of the low extinction and model the near-IR to UV emission with amulti-temperature disk model. Assuming a BH mass of M_BH=5 Msun and a systeminclination of 40 deg, the fits imply an inner radius for the disk ofRin/Rg>212 d_3 (5Msun/M_BH). The outer radius is R_out/R_g=90,000 d_3(5Msun/M_BH), which corresponds to 6.6e10 d_3 cm, consistent with the expectedsize of the disk. The 0.5-240 keV spectrum measured by Swift/XRT, Suzaku, andNuSTAR is relatively well characterized by a power-law with a photon index ofGamma=1.722+/-0.003, but a significant improvement is seen when a secondcontinuum component is added. Reflection is a possibility, but no iron line isdetected, implying a low iron abundance. We are able to fit the entire SED witha multi-temperature disk component, a Comptonization component, and a brokenpower-law, representing the emission from the compact jet. The broken power-lawcannot significantly contribute to the soft X-ray emission, and this may berelated to why Swift J1753.5-0127 is an outlier in the radio/X-ray correlation.The broken power-law might dominate above 20 keV, which would constrain thebreak frequency to be between 2.4e10 Hz and 3.6e12 Hz. Although the fits to thefull SED do not include significant thermal emission in the X-ray band,previous observations have consistently seen such a component, and we find thatthere is evidence at the 3.1-sigma level for a disk-blackbody component with atemperature of 150(+30)(-20) eV and an inner radius of 5-14 R_g. If thiscomponent is real, it might imply the presence of an inner accretion disk inaddition to the strongly truncated (R_in>212 R_g) disk.

The Accreting Black Hole Swift J1753.5-0127 from Radio to Hard X-Ray