I2C Multiplexer for the Raspberry Pi (RPI-I2C-HUB) from Land Boards, LLC on Tindie
RPI SPI8 - Land Boards Wiki
Raspberry Pi Slips Out New PCB Version With USB C Power Fix | Hackaday
Network Expansion Board USB HUB PI0 USB to J45 for Raspberry Pi Zero W | eBay
Did You Know That The Raspberry Pi 4 Has More SPI, I2C, UART Ports? | Hackaday
FPF1320 Power Multiplexer Carrier with USB Micro-B Connector | POLOLU-2594 | Core Electronics Australia
Buy Hub USB Hat - 4-port hub for Raspberry Pi Botland - Robotic Shop
I2C Multiplexer pHAT - 8-channel I2C expander module for Raspberry Pi - Kamami on-line store
USB Switch / Multiplexer from 8086 Consultancy on Tindie
USB Switch and Multiplexer | The Pi Hut
4:1 USB 3.0 MULTIPLEXER - Interface forum - Interface - TI E2E support forums
I2C Multiplexer pHAT for Raspberry Pi | The Pi Hut
USB Switch / Multiplexer from 8086 Consultancy on Tindie
Amazon.com: eLearnTronics Learn to Solder | Electronics Learning Board: Multiplexer | Practice Soldering & Learn Electronics Use with Arduino or Raspberry Pi : Electronics