Product · United States

Relay Module HFD4/3-S Thin 3.3 5V STM32 51 MCU

Product no longer available. The stores we track no longer sell it; last price seen $12.02.

Price history: 2 daily prices tracked since 2026-10-19; lowest $12.02, highest $12.02.

Relay Module HFD4/3-S Thin 3.3 5V STM32 51 MCU

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