This sync cord is compatible with Nikon iTTL speedlights and other iTTL flashes from Metz, Quantum, Vivitar, Sunpak and others. Connect your Nikon SLR digital camera with this off camera shoe cord to your iTTL remote flash. The iTTL hot shoe allows you to connect to a wireless trigger, making it a dual hot shoe cord. Essential accessory for the Alzo Flip Flash Bracket.