This UT-41 NMEA-0183 output USB GPS receiver is a compact all-in-one GPS solution suitable for a broad range of end product applications, where fast and easy system integration and minimal development risk is required.

This UT-41 features 12 parallel channels and 4100 time/frequency search bins provide short start-up time and fast signal acquisition. Having fast time-to-first-fix and enhanced sensitivity, the UT-41 offers good navigation performance even in urban canyons. The satellite-based augmentation systems, such as WAAS and EGNOS, are supported to yield improved accuracy.

What all this means is that if you have software that can take a GPS unit, but no GPS, then this is the answer you've been looking for!  Because the output is a GPS standard protocol (NMEA-0183), many applications work with it out of the box!