USB to RS422/ RS485 / serial RS232 / TTL ( 5V / 3.3V ) optical isolation USB to 422 485 232 Converter Adapter Surge protection

USB to RS422/ RS485 / serial RS232 / TTL ( 5V / 3.3V ) optical isolation USB to 422 485 232 Converter Adapter Surge protection
sku: 4000600453266
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$22.55
Shipping from: China
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