I suggest this unit. Have purchased 2 and love them. They are USB powered (no external brick) and are highly portable.
https://www.amazon.com/Seagate-Backup-Portable-External-STDR4000100/dp/B00ZTRXFBA
Realizing it is not internal means there could be a concern for security but that is when the drive is encrypted (as it should be anyway, internal or external) and this then doesn't limit you to your current computer.
https://www.amazon.com/Seagate-Backup-Portable-External-STDR4000100/dp/B00ZTRXFBA
Realizing it is not internal means there could be a concern for security but that is when the drive is encrypted (as it should be anyway, internal or external) and this then doesn't limit you to your current computer.
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