Sintron] 40 Pin GPIO Extension Board with 40 Pin Rainbow Color Ribbon Cable for Raspberry Pi 1 Models A+ and B+, Pi 2 Model B, Pi 3 Model B and Pi Zero :
GPIO Extender Board for Raspberry Pi B B+ 2B 3B | Makerfabs
GPIO Extender Board for Raspberry Pi B B+ 2B 3B | Makerfabs
Geekworm Raspberry Pi 2x20 40 Pin GPIO Stacking Header/Extender Kit
GPIO Port Extender Module - Micro Robotics
Geekworm 2x20 40 Pin Stacking Female Header Kit for Raspberry Pi 4B/3B+/3B/2B/B+/A+/Zero W/Zero 2 W(5 Specifications 10Pcs), Raspberry Pi GPIO Stacking Header/Extender, Raspberry Pi Pico Header Pack
Raspberry Pi 40-pin GPIO 1 to 2 Extender – Geekworm
40-way Protected GPIO Extender for Raspberry Pi - Kit
10 Best GPIO Extension Board For Raspberry Pi
RPI SHD DOUBLER: Raspberry Pi Shield - GPIO port expander at reichelt elektronik