ATmega32U4 8-bit MCU with USB Controller - Microchip Technology | Mouser
USB MCUs and dsPIC DSCs | Microchip Technology
Amazon.com: WSDMAVIS 2 Pcs Mini MCU-Beetle USB Microcontroller ATMEGA32U4 Development Board for Arduino Leonardo : Electronics
Adafruit Feather RP2040 with USB Type A Host : ID 5723 : $17.50 : Adafruit Industries, Unique & fun DIY electronics and kits
JY-MCU HC-06 USB to Bluetooth Wireless Module
CH551 Mini USB MCU DEV Board [CH55x Series] – ElectroDragon
USB to TTL isolated type STC Series MCU Auto Programmer Downloader STM8 STM32 | eBay
USB MCUs and dsPIC DSCs | Microchip Technology
MCU Peripherals Tips Tricks for Using USB in Embedded Applications Part I | DigiKey
usb device - USB Full Speed driver with MCU in DIP package - Electrical Engineering Stack Exchange
USB iNode MCU USB microcontroller - NodeMCU ESP32 Botland - Robotic Shop
Automatic Mcu Usb 51 Microcontroller Downloader Auto Programmer / 3.3v 5v Universal / Dual Voltage Usb To Ttl Download Cable - Integrated Circuits - AliExpress
FTDI - Micro Controller
WCH CH552T E8051 8-BIT USB MCU TSSOP-20 from Rabid's Electronics Emporium on Tindie
PIC18F14K50 MicroChip USB Supported Mcu Price Microchip | JSumo
MCU Micro USB Breadboard 5V Power Supply Module – Makerlab Electronics
Tomu: A Microcontroller For Your USB Port | Hackaday