Description: It can get power from V-Mount(Or Anton Mount)Battery Plate. Fit for A7 A7R A7S NEX-5 NEX-6 NEX-7 5N 5R 5T 5TL A5000 A5100 A6000 SONY camera which use FW-50 battery pack. Input voltage:7.4V-8.4V. With a standard DC jacket 5.5MM 2.1MM. Smart full decoding chip inside the pack. Specification: Material: pvc + alloy Size: 44*30*17mm Package Includes: 1x FW-50P External Power 1x DC Spring Cable