Micnova ELELAB07GZPW193 GPS-N Plus High-Precision Camera GPS Receiver Navigation Geotagging for Nikon D3100, D3200, D3300, D5000, D5100, D5200, D5300, D
Nikon D7000 DSLR Camera
GPS Geotagger fo Nikon - PhotoProShop
Nikon GP-1 GPS Unit Review - digitaldarrell's Blog
Alternative GPS module solution for Nikon cameras: di-GPS Eco Pro-S and Pro-F - Nikon Rumors
Amazon.com : Nikon GP-N100 GPS Unit for Nikon 1 V1 Digital Camera : Gps Cables : Electronics