Using a USB Audio Device with the Raspberry Pi - Raspberry Pi Spy
Captain Bodgit: The Adafruit USB Audio Adapter
Tiny OTG Adapter - USB Micro to USB : ID 2910 : $2.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Adafruit Audio FX Sound Board - WAV/OGG Trigger with 2MB Flash : ID 2133 : $19.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Adafruit Industries MCP2221A Breakout - General Purpose USB to GPIO ADC I2C - Stemma QT / Qwiic - Micro Center
Adafruit module with USB type C socket - Botland - Robotic Shop
nRF52840 USB Key with TinyUF2 Bootloader - Bluetooth Low Energy [MDBT50Q-RX] : ID 5199 : $15.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Adafruit I2S Audio Bonnet for Raspberry Pi [UDA1334A] : ID 4037 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits
USB Audio Adapter – Works with Raspberry Pi
USB Audio Adapter - Works with Raspberry Pi : ID 1475 : $4.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Adafruit 4410 Micro Lipo Charger for LiPoly Battery with USB Type C Jack for sale online | eBay
3DMakerWorld] Adafruit USB C Jack to USB A Jack Round Panel Mount Adapter | eBay
Would the Adafruit USB Audio Adapter be sufficient for Pi 3 B+ audio? - Raspberry Pi Stack Exchange