Kenwood CA-DR1030 Manual Del Usuario página 6

2.4
If required, we've included a Ferrite Core(Item 9) along with
the Hardwire Kit. This can be use to suppress any radio electronic
interference. Loop it around the Power Cable about 5-8 inches
from the dash cam for best result.
Specifications
Cable Length
Connector Type
Input
Output
Weight
4m, 13ft
Mini USB
DC12V/24V
5V 2A
5.5oz / 157g
04 04
2A