I also do computer repair as a hobby and a service as long as it remains within my skills.
My external hard drives are all enclosures I buy in order to fit regular SATA drives in them and do not contain sensible data (or are used for backup purposes). Besides, I would never ever myself buy one of those solutions companies like Western Digital, Seagate or even Samsung or whatever want you to buy as an external hard drive.
For those who might recognize that name, they probably wonder why I'm posting here since I should know the basic rules about data preservation and failure prevention.