Amazon.com : Nikon Wireless Mobile Adapter WU-1a for D5200,D3200 : Electronics
Camera Photography Data Cable Clamp For Canon 5D2 5D3 5DSR For Nikon D800 D800 D810A SLR Adapter Accessories - AliExpress
Shooting Wirelessly with Nikon Digital Cameras and Wi-Fi Adapters | Nikon
Amazon.com : Fotasy T Mount Lens to F Mount DSLR Adapter, T2 Telepscope Lens to Nikkor Adapter, Compatible with Nikon D5 D4S D4 Df D3 D850 D810 D800 D750 D610 D7500 D7200
Nikon D800/D800E cameras are currently not compatible with Eye-Fi cards - Nikon Rumors