Some question about Rock Pi E

Hi everyone, I am new to this forum. I am finding Raspberry Pi alternative.

I see the Rock Pi E has two Ethernet port, but I want to know which are the Ethernet chip the Rock Pi E using. Are the Ethernet Port Native Ethernet (non USB)?

Besides, I would like to know the installation process. For example. how to install Debian to eMMC card?

Hello. ROCK Pi E has two network ports, 100M and 1000M (RTL8211E/RTL8821F), both of which are native (no USB port).

How to Install OS to eMMC