This RF-602 Shutter Release Cable is used to be connecting RF-602 receiver with camera to achieve the function of wireless remote control.
As you know, there are five types for RF-602, and each type just fits for some specific cameras, so
a)if the set you have is the type fits for Canon Camera, but you want to use it in other Canon camera, and then you just need to buy this cable to replace the original one.
b), All RF-602 receivers is the same, just the transmitter for Nikon and Camera version and the shutter release cable are different.
Suitable for camera:
Nikon D90 D5000 D7000
1 x RF-602 N3 Shutter Release CableKind note
This cable must be used with our RF-602, It's no use to buy only one cable.But if you have RF-602 for Canon camera,and you would like to use a new camera,you only need to buy one related cable to connect with your camera.