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Dual ETH Quad RS485 Base Board (B) For Raspberry Pi Compute Module 4, Gigabit Ethernet, 4CH Isolated RS485, USB2.0 | CM4-ETH-RS485-BASE-B
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2-Channel RS485 Module for Raspberry Pi Pico, SP3485 Transceiver, UART To RS485 - Melopero Electronics
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2-Channel Isolated RS485 Expansion HAT for Raspberry Pi, SC16IS752+SP3485 Solution, with Multi Onboard Protection Circuits
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