SD-501 is a GPS receiver with SDIO interface and built-in active antenna applying high sensitivity to tracking signals. Based on the SiRF Star II/X-Trac Low Power Chipset and multitasking, you will be impressed by what this compact and stylish design can do!

The GPS community was really impressed with the SD-501.  Read what they have to say about it:

  reviewed in English:
"I was really impressed with the signal strength and accuracy of this device. Once I had sorted out my software conflicts it installed easily and was simple to use. It maintained a strong and accurate fix in all conditions and terrains."

  reviewed in French:
"With the SD-501 Globalsat have created the first practical and functional SDIO GPS.  This is a no-compromise design that uses the high sensitivity SiRF Xtrac 2 firmware.  This will be useful for owners of PDAs with only a single SD expansion port."

   reviewed in German:
"With Sd-501, Globalsat made a success of the bet to offer one (the first) perfectly functional GPS SDIO..."

   reviewed in Italian:
"Oggi possiamo affermare che tale livello di affidabilit??stato perfettamente raggiunto dall'ultimo nato in casa GlobalSat e cio?dal nuovo SD-501..."