New DC Coupler NP-BX1 Dummy Battery Adaptor Accessories for Sony RX100 RX100M2
Applicable models: For Sony RX100, RX100M2, RX100M3, RX100M4, RX100M5, RX100M6, RX100M7, RX1R, HX50, HX90, HX300, WX300, WX350, WX500, ZV1, etc. DC port size: DC 4.0 1.7mm (positive inside and negative outside).