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PCIe to 4-Port RS-485/422 Serial Card with Opto-Isolation, Surge/Lightning Protection & Terminal Block - Industrial-Grade Multi-Port Expansion Card for COM Port, Automation, Communication
- Model #: C7FK-OYS-2026.7.28-67
- $75.99 –
- Free Shipping

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PCIe to 4-Port RS-485/422 Serial Card with Opto-Isolation, Surge/Lightning Protection & Terminal Block - Industrial-Grade Multi-Port Expansion Card for COM Port, Automation, Communication
- Model #: C7FK-OYS-2026.7.28-573
- $75.99 –
- Free Shipping

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IO CREST 2 Port RS-232 DB9 Serial M.2 B+M Key Controller Card SI-ADA15069
- Model #: C7FK-OYS-2026.7.28-568
- $88.99 –
- Free Shipping

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Syba 2 Port DB9 RS-422 / 485 Serial PCI-Express 2.0 x1 Card (SI-PEX15043)
- Model #: C7FK-OYS-2026.7.28-550
- $98.99 –
- Free Shipping

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PCIe to 8-Port RS-485/422 Serial Port Card, 8-Channel COM Expansion Card with TVS, Lightning/Surge Protection & Terminal Blocks - Industrial Multi-Port Data Communication
- Model #: C7FK-OYS-2026.7.28-837
- $128.99 –
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2-Port Serial to Ethernet Servers USR-N520-H7-6 with RS232/485 Interface (USR-N520-H7-6 * 1 Set)
- Model #: CHIYB0DJFG5YHW
- $178.99 –
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Vszerda PCIe to 4-Port RS-485/422 Serial Card with Opto-Isolation, Surge/Lightning Protection & Terminal Block - Industrial-Grade Multi-Port Expansion Card for COM Port, Automation, Communication
Limited time offer, ends 08/18
- Model #: JY9T84G6
- $148.99 –
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Powerful Performance 5 Network Ports Industrial Serial Port 232/485 Dual SIM Card 4G Industrial Router AR550 PoE Power Supply, PLC Remote Control
- Model #: CHIYB0D8PPKLKN
- $392.99 –
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Industrial Serial to Ethernet Converter, RS232, TCP, UDP, Device Server, CSE-H53N
- Model #: CHIYB0B28DZWSS
- $207.99 –
- Free Shipping

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WAVARCL RS232 to Bluetooth Serial Adapter Change 232 Wired Device to Wireless (WF610A)
- Model #: CHIYB0DHW61LGR
- $229.99 –
- Free Shipping

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PCIe to 2-Port RS232 Serial + 1-Port DB25 Parallel Card AX99100 Controller, Supports 5V/12V Power on Pin 9, IEEE1284 Parallel, Wide Temperature Range (-40°C to 80°C)
Limited time offer, ends 08/16
- Model #: C2AG-C0325-39
- $62.56 –
- More options from $62.56 - $66.65
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WAVARCL Bluetooth Serial Adapter RS232 to RJ45, Wireless Bluetooth Communication Module, Replace USB RJ45 Cable and 9-pin Adapter (WF610 Pro)
- Model #: CIKHB0D2RH48HL
- $279.19 –
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For ESP-01 Esp8266 ESP-01S Model Of The ESP8266 Serial Breadboard Adapter To WiFi Transceiver Module Breakout UART Module
- Model #: .jiudian-YC5KU-1016
- $13.99 –
- Free Shipping

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DeLOCK 89336 Internal Serial Interface Card and Adapter
- Model #: TOLDB00BQ156W4
- $768.99 –
- Free Shipping

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USR-TCP232-302 Tiny Size RS232 to TCP IP Converter Serial RS232 to Ethernet Server Module Ethernet Converter Support DHCP/DNS (10)
- Model #: CIKHB0F2S7YZPV
- $414.19 –
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USR-TCP232-302 Tiny Size RS232 to TCP IP Converter Serial RS232 to Ethernet Server Module Ethernet Converter Support DHCP/DNS (10)
- Model #: RCCWB0F2S7YZPV
- $414.19 –
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Global Band Industrial 4G LTE Router GPS Function Enhanced OPENVPN RS485 Serial Port USR-G806s-G x 1 Set
- Model #: CHIYB0DMZX2MK2
- $303.99 –
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- $35.00
- $34.30 –

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LINDY 8 Port Serial RS-232, 16C950 128 Byte FIFO PCI Card Std Profile (51275)
- Model #: TOLDB003OAWZKG
- $723.99 –
- Free Shipping

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2080-SERIALISOL Micro800 Isolated Serial Port Plug-in Module 2080SERIALISOL New in Box with Warranty
- Model #: TOLDB0CH5CS1NV
- $349.99 –
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PCIE RS232 Expansion Card PCIe Serial Host Controller Card with 2 Port PCI Express RS232 DB9 Serial Port, ASIX AX99100 Chip, Support for Windows
- Model #: LHXC6W1JU09-6
- $39.99 –
- Free Shipping

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Ethernet Network Serial Port Converter RJ45 to RS232 RS485 RS422 Industrial Device Server Support TCP/RTU/UDP with Power Cable
- Model #: DW-TXI038
- $46.99 –
- Free Shipping

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USR-DR302 DIN-Rail Modbus RS485 Serial Port to Ethernet Converter Bidirectional Transparent Transmission Between RS485 and RJ45
- Model #: LC6W1J25-1347
- $96.99 –
- Free Shipping

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PCIe to Dual RS-485/422 Serial Port Card with DB9 Connectors - High-Speed 1-to-2 Multi-Port Expansion Card, Terminal Block Adapters
- Model #: TOLDB0F9FMG1PZ
- $75.99 –
- Free Shipping

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Vszerda 2 Port Serial DB9 RS232 PCI-e 1.0 x1 with Low Bracket SI-PEX15055
Limited time offer, ends 08/16
- Model #: C745-Lsy715-1228
- $47.99 –
- Free Shipping

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Dual Channel RS485 to RJ45 Ethernet Serial Server, 1200 115200bps, Rail Mount, for Industrial Network Communication
- Model #: CHIYB0FH4J1RTQ
- $186.19 –
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2port Serial Card Pci Express Msc9901 Chipset
- Model #: TOLDB004TNZLC6
- $83.99 –
- Free Shipping

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USR-G806s-EAU 4G Industrial LTE Cellular VPN Router Open VPN Server with RS485 Serial Port WAN/LAN Ethernet Ports Standard 2FF SIM Card Slot
- Model #: CHIYB0DG5L9LGH
- $239.99 –
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MOXA NPort 5650-8-DT 8-Serial Port Serial Device Server, 10/100 Ethernet, RS-232/422/485, DB-9M, 15KV ESD, 12-48VDC, 110V Power Supply
- Model #: HANRB07CGS6DW6
- $1,199.99 –
- More options from $1,199.99 - $1,620.99
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8 Port Serial RS232/422/485 PCIe Module Isolation and Surge Protection
- Model #: TOLDB01NCJY2GH
- $671.99 –
- Free Shipping

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LINDY 4 Port Serial RS-232, 16C650 128 Byte FIFO PCIe Card (51189)
- Model #: TOLDB0028R1AF2
- $149.99 –
- Free Shipping

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Usr-Tcp232-410S RS232 / RS485 Serial to Ethernet Adapter/IP Device Server Ethernet Converter Support DHCP/DNS (2)
- Model #: CIKHB0F3CYL57T
- $155.19 –
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