Features

The ETH/USB HUB HAT (B) is an Ethernet and USB HUB designed for Raspberry Pi, providing 1x RJ45 Ethernet port and 3x USB 2.0 ports. It's pogo pin design
is specialized for Zero series, while the onboard normal USB connector can be used to connect for Raspberry Pi boards through a USB cable.

3x extended USB ports, compatible with USB 2.0 / 1.1
Incorporates RTL8152B Ethernet chip, supports 1x RJ45 Ethernet port, 10/100M auto-negotiation
Pogo pin design, direct connecting for Raspberry Pi Zero/Zero W/Zero WH
USB HUB connector, connecting for Raspberry Pi 4B/3B+/3A+/2B through USB cable

Part List

1. ETH/USB HUB HAT (B) x1
2. Screws pack x1

Resources available: http://www.waveshare.com/wiki/ETH/USB_HUB_HAT_(B)