Armor ATD password protect data

What is the best method to encrypt or password protect data on Armor ATD 4TB external drive?
Is BitLocker good enough or is there any tool for G-Technology products?

Hi UttamKamkar,
there is no encryption tool from G-Technology for these drives. They have info on how to setup BitLocker though:
https://support-en.g-technology.com/app/answers/detail/a_id/661

Thank you so much for your valuable reply.