Hello, Yes, you can. Port 10 (top) is for internet and port 11 (bottom) for LAN. Fiber 7 works fine. SFP for fibre 7: Flexoptix P.B1696.10.AD (supplied by Init7). For LAN I don't need a 10G SFP. They all work in general. If you want to be sure, take the ones from Ubiquiti. They are cheap and ok.