Raspberry Pi GPIO Expansion Board (Works with Pi 4/3B+/3B)
Amazon.com: T-Type GPIO Extension Module Board Adapter with 40Pin Ribbon Flat Cable for Raspberry Pi 1B+/ 2B/ 3B : Electronics
Multifunctional GPIO Raspberry Pi Expansion Board for Raspberry Pi 2 3 – MakerFocus
GPIO Expansion Board Raspberry Pi Shield for Raspberry PI 2 3 B B+ With Screws | eBay
GPIO Extender Board for Raspberry Pi B B+ 2B 3B | Makerfabs
Raspberry Pi 400 GPIO Expansion Board - RobotShop
Amazon.com: RPi GPIO Expansion Module Board for RPi Zero 2W, USB2.0 RJ45 Network Port Adapter Board, 100M Self Adaptive, GPIO Extension Board for General Computer : Electronics
GPIO Extension Module PCB General Purpose Input/Output Board with Screw GPIO Header Extender for Raspberry Pi 400 GPIO Expander - AliExpress