u/Hunting677

Taking over a lease , one of the previous tenants was a bank, but I am just a coffee shop. Should I use this equipment? I’d like to have some security but not all of the cameras seen in the photos are needed.

Are these cameras outdated for online viewing and storage through an NVR, or could I buy an NVR and just plug-in play? I know a bit of electrical knowledge, but I am very new to security camera set ups (I.e. my only experience is ring cameras).

What would be the steps you would take?