I haven't really tested ethernet throughput as I wasn't interested. Without VPN or firewall rules, I would imagine it's going to be close to 1 gbit/s. But I have set it up in bridge mode with linksys wrt1900acs (very capable router, shame on linksys not to provide sufficient support, I'm running openwrt on it) and I can get 200/40 mbit/s - but that seems to be my ISP limit, also cat6 modem is theoretically 300mbit/s, but in real world (look at teltonika tests on youtube, maximum was about 230mbit), my phone can do 230mbit and it has cat16, of course without any external antenna. To sum it up, you may buy it, test it and if it doesn't match your criteria, return it. I'm more than happy to use my RUTX09 (with a few bugs, that I have workarounds for) for my home internet connection, in these times fully used for work.