The UK70 Camera Trigger Cable from TriggerSmart is the cable that connects your camera to the UK1 TriggerSmart Controller. It is included in the TriggerSmart kit but can also be purchased separately. The cable has 2.5mm jacks on both ends and is compatible with select Canon, Contax, Pentax and Samsung cameras. For other cameras, a different dedicated cable must be purchased. The cable is an 18" (45.7 cm) coiled cable, when not stretched.