E for Ethernets.
This is the documentation for Radxa E23, written by Radxa Team with community contributions.
Radxa E23 is a Rockchip RK3566 based SBC(Single Board Computer) by Radxa. It equips a 64bits quad core processor, USB 3.0, dual ethernets(one 1G and one 2.5G ethernet), wireless connectivity at the size of 2.5x2.2 inch(56x65mm), making it perfect for IoT and network applications. Radxa E23 comes in various ram sizes from 512MB to 8GB LPDDR4, and uses uSD card for OS and storage as well as supporting eMMC module. Optionally, Radxa E23 supports PoE, additional HAT is required.