One question was i found the leaflet inside the box said:
"We have pre-configured.......UFB:
Configured LAN 1 as a WAN port
3. Plug the yellow Ethernet cable into the yellow LAN 1 port on the back of the modem (2); plug the other end into port 1 on the device installed by the fibre provider."
Which means i only left with 3 Gigabit-Lan to connect to other devices with cable? I would have choosen 7340 if i knew this earlier as anyway i still need to connect to a switch or hub, just because i have 4 devices to be connected through cable.