CoreSWX XP DSLR GH4 PowerTap Cable for Panasonic GH4 Camera - Perfect for On-the-Go Filmmaking and Professional Videography

Switronix P-tap To Gh3/4 Adapt
Power the GH4 camera off of any P-Tap power source. It features a P-Tap connector on one end and a dummy battery that inserts into your GH4 on the other. The cable is approximately 24" long. A P-Tap output is also available on the regulator block that lets you simultaneously power accessories.