MDF`s running Ligthouse II can support unlimited number if IP cameras connected to the Seatalk-HS network. Raymarine
CAN200IP is one example, but at $620 they dont come cheap
I got an recommendation to try Dahua cameras and i oped 3 pcs Dahua IPC-HFW4300E and i have to say it really works great!
We have Raymarine ES128 at the helm
and Raymarine ES78 down below.
The ES128 is also connected to the 40" tv thru 10M HDMI cable.
I also added an QNAP NAS to the network with 3TB HD, so it can actually record
everything on the cameras 24/4 if we want.
We can log in from home thru 4G router, and check that everything is ok.