using x2 nas boxes on same internet connection?

[Enquiries]

i have terramaster nas f4-210 which is working just great for the home users. but my son has a business from and wants to keep all is customers details separate from my business can i use another terramaster nas on the same network will it have the same IP address ?or would you go for a different brand which will have a different Ip address. Will there be conflict using 2 terramaster boxes