The Nikon SC-28 TTL Coiled Remote Cord provides full TTL control for Nikon Speedlights when used off camera with Nikon SLR cameras which have a TTL-enabled hot shoe. Approximately 9' (2.7 m) long and coiled, it permits easy use of flash when the camera is mounted upon a bracket.
This cord replaces the SC-17. Improvements on the SC-28 over the SC-17 are: Posi-Lock (an improved locking switch) and the cord on the camera shoe that now connects parallel to the camera.