1-12PCS TTL To RS485 485 To Serial UART Level Mutual Conversion Hardware Automatic Control Power Supply Module 3.3V 5V

1-12PCS TTL To RS485 485 To Serial UART Level Mutual Conversion Hardware Automatic Control Power Supply Module 3.3V 5V
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sku: 1005009457898539
$2.36
Shipping from: China
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