Microcontrollers with USB interface are common, but… | FTDI
Pololu USB-to-Serial Adapter
YKAMELEAN24 Yepkit Microcontroller Development Board
Arduino Nano USB Microcontroller v3 (China) - RoboticX
Arduino Nano Micro-Controller with ATmega328P 16MHz 5.0V CH340G USB – Envistia Mall
Nano Microcontroller R3 Unsoldered (Compatible with Arduino Nano) - Type-C USB - hit.ps
USB C Type-C Nano V3.0 ATmega328 5V 16M Microcontroller CH340G Board For Arduino | eBay
CH552G Development Board / Core Board 8051 USB Microcontroller CH551G / CH552G / CH554G WCH - AliExpress
PropStick USB
Microcontrollers with USB interface are common, but… | FTDI
Adafruit Feather RP2040 with USB Type A Host : ID 5723 : $17.50 : Adafruit Industries, Unique & fun DIY electronics and kits
CH551 is a $1.80 USB Mini Development board based on the 8-bit C51 micro-controller - Electronics-Lab.com
Teensy 3.2 USB Development Board — Arduino Online Shop
Elite-Pi - USB-C Pro Micro Replacement RP2040 Controller – Keebio
PIC-USB-4550
6.90.00 emPower USB Host Board - Segger | Mouser
Amazon.com: ciciglow RP2040 Microcontroller with USB A Male Port, Dual Core 264KB 2M Flash Development Kit with Rich Interfaces, Support for C, for Python Development : Electronics
CH32V003 USB Development Board by nanoDyne
Tomu: A Microcontroller For Your USB Port | Hackaday
Sumolink Erhu RP2040 (USB-C) » 1upkeyboards
Amazon.com: TISEKER Mini Nano V3.0 ATmega328P Microcontroller Board with USB Cable for Arduino : Electronics
Arduino Uno R3 USB Microcontroller - RobotShop
Waveshare RP2040-Tiny Development Board, Raspberry Pi Microcontroller Development Board, Based On Official RP2040 Dual Core Processor, USB Port Adapter Board Optional
ATmega328P CH340 USB Microcontroller Board Arduino Compatible – Envistia Mall
![Adafruit Trinket - Mini Microcontroller - 3.3V Logic [MicroUSB] : ID 1500 : $6.95 : Adafruit Industries, Unique & fun DIY electronics and kits](https://cdn-shop.adafruit.com/970x728/1500-13.jpg "Adafruit Trinket - Mini Microcontroller - 3.3V Logic [MicroUSB] : ID 1500 : $6.95 : Adafruit Industries, Unique & fun DIY electronics and kits")