I bought a Swann system awhile ago, using cables to camera (as it's relatively easy to disrupt wifi signals). The camera's are powered via the cable to it, so they don't need an outlet nearby, just some where the head unit is. They are 4K camera's and have good day and night images. The only complaint I have about it is Swann are complete f'ing morons when it comes to user interface, from their base not supporting using a keyboard but also demanding a long, complex password all the time (it sucks typing on an on-screen keyboard using a mouse), and the rest of the UI is similarly stupid. It can do what you want, but it's like someone who still uses Windows 3.1 all the time made the software.