The Nikon Genuine SC-17 Off Camera TTL Flash Extension Remote Cord is designed specifically for Nikon brand cameras and accessories. It is compatible with Nikon flash guns, cameras, and flash heads, allowing for off-camera TTL flash photography. This extension cord enables photographers to position their flash units away from the camera, providing more flexibility in lighting setups and creative control over their photography. Made by Nikon, this genuine product ensures high quality and reliable performance for professional photography needs.