The PocketWizard PW-DC-N10 Cable is a must-have power cable that connects the 10-pin accessory terminal of your Nikon DSLR to the USB port of a PocketWizard MiniTT1 or Plus III to power the radio using your camera's battery. Besides saving you from having to buy a battery, the PW-DC-N10 gives you the peace of mind of not having to worry about low-battery indicators. The cable is small and compact so you can detach it when you're finished and store it with your radio.