Canon GP-E2 GPS Receiver Hot Shoe Teardown - iFixit
Canon Support for GPS Receiver GP-E2 | Canon U.S.A., Inc.
Marrex MX-G10M GPS Geotag Adapter with Cleaning Kit for Canon EOS 5DS R 70D 5D Mark III 7D Rebel SL1 T3i T3 T5i T5 DSLR Cameras - TVs & Electronics - Cameras
Solved: GPS Receiver GP-E2 USB to PC Cable - Canon Community
Solmeta Geotagger GMAX-EOS2 GPS receiver for Canon - PhotoProShop