Overview

The USB HUB HAT (B) is a 4x ports USB HUB designed for Raspberry Pi. 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 or PC through a USB cable.

Feature

Fits Raspberry Pi Series: Specialized Pogo Pin For Zero Series, Plug-And-Play, Without Preventing Other HATs; Normal USB HUB Connector For Other Pi Boards Or PC
4x Extended USB 2.0 Ports: USB1 ~ USB4, Compatible With USB 2.0 / 1.1

Part List

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

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