Hi everyone, My current setup is 4 Hikvision IP Cameras connected to my NAS via a 4 port PoE Switch, I was thinking of getting a Hikvision 7604NI-K1/4P (4 Channel) could i connect my existing 4 Port PoE to expand the connections, I know i could buy an 8 Channel NVR but i'm trying to keep costs down as much as I can, cheers guys and girls and other species, hope you can help