USB to 4-pin power cable for Zoom

Connector A: USB
Connector B: Hirose 4pin male

Fit for: Power Cable for Sound Devices 688 633 664 7 series mixers recorders, Zoom F4 F8 recorder, and more.

You should use this cable with a 12 volts USB output power bank/ power sources.

It won't work if you use it with 5V power bank