This is a 12V fixed-voltage MyVolts-branded power supply adaptor designed to meet exactly the power specification of your Western Digital WDBFJK0040HBK-04 External hard drive.
myVolts 12V adaptor for Apogee Element, Quartet, Thunderbridge
myVolts 12V adaptor for Suzuki Omnichord, Qchord, OM100, OM150, OM200, OM300
myVolts 12V adaptor for Harley Benton Powerplant ISO-12 Pro
myVolts 12V adaptor for Western Digital WDBAAG0010HCH-EESN
myVolts 12V adaptor for Western Digital WDBAAU0010HBK-00
myVolts 12V adaptor for Western Digital WDBAAG0010HCH-02
