5pcs/lot RS422 mutual conversion TTL two-way signal module full duplex 422 turn single chip MAX490 to TTL module
![5pcs/lot RS422 mutual conversion TTL two-way signal module full duplex 422 turn single chip MAX490 to TTL module](http://ae01.alicdn.com/kf/HTB1B8I8uuGSBuNjSspbq6AiipXaR/5pcs-lot-RS422-mutual-conversion-TTL-two-way-signal-module-full-duplex-422-turn-single-chip.jpg_350x350.jpg)
sku: 32727036474
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$9.00
Shipping from: China
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