NEW USB to rs485 communication module bidirectional half duplex serial line converter TVS protection U485
![NEW USB to rs485 communication module bidirectional half duplex serial line converter TVS protection U485](http://ae04.alicdn.com/kf/HTB1I9X6av1H3KVjSZFHq6zKppXat.jpg)
sku: 33024109145
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$4.60
Shipping from: China
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