Tebru USB Host Shield for Arduino UNO, USB Host Shield for Android ADK,USB Host Shield for Google Android ADK & UNO MEGA Duemilanove 2560 Arduino - Walmart.com
Amazon.com: USB Host Shield Compatible for Arduino MEGA 2560 1280 Support Google Android ADK & USB HUB Function : Electronics
Micro USB to USB Type-A Adapter - M/F - On-The-Go (OTG) Convertor
USB Host Module 2.0 for Arduino — PMD Way
Amazon.com: HiLetgo 2.0 ADK Mini USB Host Shield SLR Development Tool Compatible SPI Interface For Arduino : Electronics
Adafruit Feather RP2040 with USB Type A Host : ID 5723 : $17.50 : Adafruit Industries, Unique & fun DIY electronics and kits
CH559 USB Host Breakout Board from MatzElectronics on Tindie
Amazon.com: Miditech USB MIDI Host, MIT-00155 : Musical Instruments