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The growing number of multi-epoch optical and infrared sky surveys areuncovering unprecedented numbers of new variable stars, of an increasing numberof types. The short interval between observations in adjacent near infraredfilters in the UKIDSS Galactic Plane Survey (UGPS) allows for the discovery ofvariability on the timescale of minutes. We report on the nature of one suchobject, through the use of optical spectroscopy, time-series photometry andtargeted X-ray observations. We propose that UGPS J194310.32+183851.8 is amagnetic cataclysmic variable star of novel character, probably featuring alonger than average spin period and an orbital period likely to be shorter thanthe period gap (i.e. P$_{\text{orb}}$<2 hours). We reason that the star islikely a member of the short period Intermediate-Polar subclass that existbelow this period boundary, but with the additional feature that system's SEDis fainter and redder than other members of the group.

UGPS J194310+183851: an Unusual Optical and X-ray Faint Cataclysmic Variable?