Amazon.com: ARCELI USB Host Shield for Arduino UNO MEGA 2560 Support Google Android ADK USB HUB : Electronics
OTVIAP USB Host Shield for Arduino UNO,USB Host Shield for Google Android ADK & UNO MEGA Duemilanove 2560 Arduino, USB Host Shield Module - Walmart.com
Arduino Uno Rev3 — Arduino Official Store
Arduino Serial USB Board - DEV-08165 - SparkFun Electronics
Arduino Usb Mouse Keyboard Module | Usb Hid Keyboard Module | Arduino Usb Hid Module - Automation Modules - Aliexpress
Arduino (Compatible) UNO R3 with usb cable - Maker Store USA