Getting started with the USB host shield — Gerrit Niezen
Amazon.com: SparkFun Qwiic Shield Compatible with Arduino Nano-connect the I2C bus (GND, 3.3V, SDA and SCL) to four Qwiic connectors (two horizontally and two vertically mounted)-daisy chaining-Soldering Required : Electronics
Nettigo: USB Host Shield for Arduino [SparkFun DEV-09947]
ADK USB Host Shield – Kuongshun Electronic Shop
Amazon.com: SparkFun Qwiic Shield for Arduino : Electronics
Retired] USB Host Shield (for Arduino UNO MEGA Google ADK ANDROID) - ElectroDragon