My Genius arrived today but my fibre install isn't until early December.

I've seen a few comments suggesting that the ethernet ports on the Genius are only Fast Ethernet (100Mbps).  My question: what's the maximum throughput the Genius can sustain on UFB?

Many home/small business routers are built with an architecture where the ethernet ports are all on a VLAN-capable switch, and the main router CPU has a single ethernet interface to this switch.  If this is the case with the Genius, and if that connection between the CPU and the switch is merely 100MBps full duplex, then it looks like it would be impossible to get the full 100Mbps down and 50Mbps up that a UFB connection can supply, on a wired connection.

The maths: a 100Mbps full duplex port allows 100Mbps in each direction.  Traffic between a PC on the local LAN (wired), and the internet, has to transit both directions through that port.  So if I'm downloading at 100Mbps, that's 100mbps of traffic from the ONT to the CPU, and 100Mbps of traffic from the CPU to my PC -- 100Mbps in both directions.  If I try to upload 50Mbps at the same time, that's another 50Mbps in both directions ... which the switch may not support.

Now wireless mucks this analysis up a bit because it's usually attached directly to the CPU.  So you could get the full speed via wireless.  My experience with Wifi, though, is that it's never as fast as it says on the box.  Unless the Genius has especially good wifi, that won't help much.