I know most of the basic kits have packages of 4-16 so within that range. Maybe 8-10 if you want a specific? Currently the one system is 16 at one property with 480 resolution and 0 at the other. They are hardwired but I can probably make due with 100-150' runs for most of them and hardwire the further cams. A PTZ could be fun too if reasonably priced