Micnova ELELAB07GZPW193 GPS-N Plus High-Precision Camera GPS Receiver Navigation Geotagging for Nikon D3100, D3200, D3300, D5000, D5100, D5200, D5300, D
di-GPS Eco ProSumer GPS for Nikon - Terry White's Tech Blog
Nikon finally adds built-in Wi-Fi to its DSLR line-up with the D5300