Amazon.com: HiLetgo USB Host Shield for Arduino UNO Support Google Android ADK USB HUB : Electronics
Add USB Support to Any Project Using Bitluni's Cheap USB Host Microcontroller - Hackster.io
Miditech USB MIDI HOST | MUSIC STORE professional
6.90.00 emPower USB Host Board - Segger | Mouser
USB host Arduino shield
Cheap USB Host Microcontroller [CH559, ESP32, HID] - YouTube
USB OTG Host Cable - MicroB OTG male to A female : ID 1099 : $2.50 : Adafruit Industries, Unique & fun DIY electronics and kits
2-in-1 Multi-Function Micro USB Host OTG Cable w/ USB Plug Power (OTG Cable
Amazon.com: DSYJ DSYJ-D0000101 Micro USB Host OTG Cable with Micro USB Power for Nexus 4 Nexus 7 Galaxy S Iii & Galaxy Nexus 0.65ft 1Pcs Black : Cell Phones & Accessories
6.90.00 emPower USB Host Board - Segger | Mouser
Adafruit Feather RP2040 with USB Type A Host : ID 5723 : $17.50 : Adafruit Industries, Unique & fun DIY electronics and kits
Kenton Midi USB Host – Thomann United States
Micro USB Host OTG Cable with USB Power for Android Tablet Samsung/HTC/Nexus/LG – ASA College: Florida
Mini USB Host Shield 2.0 ADK MAX3421 SLR development MAX3421EEHJ module - AliExpress
USB OTG Host Cable MicroB OTG male to A female
USB MIDI Host Box - DOREMiDi
CH559 USB Host to UART Bridge Module from MatzElectronics on Tindie
USB HOST MIDI 2 USB HOST MIDI -UHM [UHM2] - €75.00 : Zen Cart!, The Art of E-commerce
Amazon.com: Miditech USB MIDI Host, MIT-00155 : Musical Instruments
Micro USB Host OTG Cable with USB Power for Samsung / HTC / Nexus / LG Phones – ASA College: Florida
USB Host Shield - DEV-09628 - SparkFun Electronics
PJRC Store
Amazon.com: USB Host Shield Compatible for Arduino MEGA 2560 1280 Support Google Android ADK & USB HUB Function : Electronics