I am looking to build my own network router (with hardware assembly not hardware design...) and I want to know if I can find some extension card for the raspberry pi dedicated to networking.
The idea will be to build a network router that has the following features
- Gigabit wire ports (3 or 4)
- 802.11ac support
- Dual band (if possible)
- support openWrt (or other OS dedicated to network administration).
I know that the USB/RJ45 port of the Raspberry Pi can be very slow (and are not sufficient for 802.11ac). That's why I am looking for a dedicated extension card (with maybe a specific chipset for managing the network...).