Ubiquiti EdgeRouter Lite
Ubiquiti's EdgeMax platform is the closest thing you can get to an enterprise grade router for less than $200. I bought my EdgeRouter Lite (ERL) for my first apartment almost five years ago and I have never once regretted my decision. The only time I've ever thought about giving it up was when I briefly thought about buying a bigger EdgeRouter.
The EdgeMax/EdgeRouter operating system, creatively named EdgeOS, is a fork of the open source VyOS and is loaded with excellent features and a killer web UI.
The ERL is fanless and sports three gigabit ethernet ports, as well as a dedicated serial console port for when I inevitably lock myself out.
It's also rackmountable: * EdgeRouter Lite rackmount kit