1 tig external drive

ok so i had my drive in storage and got it but it dosnt have the power cord lost it ,so i had 1 that the end fits the blue light comes on the pc dosnt recognize it what can i do probable get the right power to it , i am asking which one should i get thanks its a wd10000h1u-00

Pretty sure thats a My Book Essential Edition 2.0 ?

If so … 12 Volts 1.5 Amps 18 Watts

Yes thank you it just to seem it vanished don’t know where it is hope it works