DB9 Breadboard and Prototype Adapters - Winford Engineering
BM20/BM62 breadboard adapter from Tomas Kovacik on Tindie
Addicore nRF24L01+ and ESP8266 Breadboard Adapter (BB-ADTR)
Amazon.com: Akozon 10Pcs USB Type A Female Socket USB Breakout Board 2.54mm Pitch Adapter Connector DIP for DIY USB Power Supply/breadboard Design : Electronics
Help me find the ultimate ESP-32 breadboard adapter! : r/esp32