Amazon.com: RS485 CAN HAT for Raspberry Pi 4B/3B+/3B/2B/B+/A+/Zero/Zero W/WH/Zero 2W, Long-Distance Communication via RS485/CAN Function Onboard CAN Controller MCP2515 via SPI Interface Transceiver SIT65HVD230DR : Electronics
RS485 Raspberry PI shield
Raspberry Pi RS-485, CAN Shield – ElectroDragon
2-Channel Isolated RS485 Expansion HAT for Raspberry Pi: NMEA 0183 Com – Hat Labs
Arduino RS485 Shield (RJ45, bus-powered) from Nine Ideas on Tindie
RS-485 Shield for Raspberry Pi | Seeed Studio Wiki
Amazon.com: Isolated RS485 RS232 Expansion HAT Board for Raspberry Pi 4B/3B+/3B/2B/Zero/Zero 2 W/Zero 2 WH,Adopt SC16IS752 UART Expansion Chip,SPI to RS485 and RS232 Up to 921600bps Data Rate : Electronics
Raspberry Pi RS422 RS485 HAT - Zihatec GmbH
Isolated RS485 CAN HAT (B) For Raspberry Pi, 2-Ch RS485 and 1-Ch CAN, Multi Protections - PiShop.us
RS-485 Shield for Raspberry Pi | Seeed Studio Wiki