This power cord is for DC powering solution when using Cineroid EVF4C/4CSS: its output is slim DC plug, which matches the DC sock of Cineroid EVF4C/4CSS. Its input is standard D-Tap input which can be connected to many broadcast batteries, like V-mount SONY 140Wh battery, and some power plates.
Cineroid EVF4C/4CSS can sustain around 25 hours when powering from 14.8V 140Wh battery. You may have to buy this cord if you don’t want to use small battery to power EVF.
The cord is spring cable: 20cm~80cm.