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"usb serial adapter"
RS232 to RS485 Data Converter, Optical Isolation, USB 5V Power Supply, with USB Power Cable & RS232 Cable
Limited time offer, ends 11/15
$77.39
Free Shipping
(US Plug)(4 port)4 Port Active Serial RS232 Splitter 1 to 4 RS232 bi-direction Switcher Splitter 4 to 1 Support Bidirectional Transmission
Limited time offer, ends 11/15
$112.53
Free Shipping
Type-C to RJ45 external Gigabit network card + 3.0 HUB computer converter dock
Limited time offer, ends 12/01
USR-DR301 DIN-Rail RS232 Serial to Ethernet Converter Tiny Size RS232 Ethernet Serial Device Server Supports Websocket
Limited time offer, ends 11/15
$46.33
Free Shipping
Serial to Dual Band WiFi Converter RS232 to WiFi Converter Modbus Gateway Modbus RTU to TCP with MQTT IEEE802.11 a/b/g/n Easy Configuration Serial Device Server USR-DR162
Limited time offer, ends 11/15
$93.77
Free Shipping
Vszerda USR-TCP232-306 Serial to Ethernet Converter LAN Ethernet TCP/IP to RS232 RS485 RS422 Converter2
Limited time offer, ends 12/01
USR-DR301 DIN-Rail RS232 Serial to Ethernet Converter Tiny Size RS232 Ethernet Serial Device Server Supports Websocket
Limited time offer, ends 11/15
$64.91
Free Shipping
GRIDCONNECT RS232 Ethernet Converter-ATC-2000 Industrial 1 Port Serial to Ethernet
$213.99
$5.99 Shipping
TCP232-306 RS232 RS485 RS422 to Ethernet TCP IP Modbus Gateway Serial Device Server Serial to ethernet converters
Limited time offer, ends 11/15
$119.70
Free Shipping
2PCS Waveshare Industrial USB to RS485 Converter with Original FT232RL and SP485EEN Embedded Protection Circuits for Industrial Control Equipments and/or Applications
Limited time offer, ends 11/15
$61.14
Free Shipping
USR-TCP232-306 Serial to Ethernet Converter LAN Ethernet TCP/IP to RS232 RS485 RS422 Converter2
Limited time offer, ends 11/15
$77.90
Free Shipping
AJMRTC Industrial Grade Isolated USB to RS485(D) Bidirectional Converter, 2M Cable Length, FT232RNL Chip, RJ45 Connector with T568B Pinout for Industrial Serial Communication Data Transmission
Limited time offer, ends 11/25
$45.44
Free Shipping
Serial Server RS232 / RS422 / RS485 to Ethernet Modbus Gateway, IoT Communication Module, Serial to Ethernet Converter for Industrial Automation / SCADA
Limited time offer, ends 11/15
$44.79
Free Shipping
FTDI CHIP USB TO M12 5P FEMALE RS232 CONVERTER SERIAL COMMUNICATION CABLE FOR SMC ITV1000 ITV2000 ITV3000 SERIES E/P REGULATOR 5M Length
Limited time offer, ends 11/15
$102.65
Free Shipping
