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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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2-Port PCI Express RS-232 DB9 Serial Port Card for Windows XP, Vista,7, 8.x, 10, 11 32/64bit and Linux PCs, PCIE RS232 Card, PCIE Serial DB9 Port Card (PCIE-SE2)
- Brand: HP
- Part Number: PCIE-SE2
- Connectors: 1 x RJ45
- Interface: PCI
- Model #: 141931474414
- $53.99 –
- 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 –
- 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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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 08/15
- Model #: C7FK-OYS-2026.7.28-67
- $74.99 –
- 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
Limited time offer, ends 08/15
- Model #: C7FK-OYS-2026.7.28-573
- $74.99 –
- Free Shipping

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2port Serial Card Pci Express Msc9901 Chipset
- Model #: TOLDB004TNZLC6
- $83.99 –
- Free Shipping

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Brainboxes Serial Adapter - 2 Ports (ES-357)
- Model #: TOLDB008S0EMTO
- $545.99 –
- Free Shipping

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

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IO CREST 2 Port RS-232 DB9 Serial M.2 B+M Key Controller Card SI-ADA15069
Limited time offer, ends 08/15
- Model #: C7FK-OYS-2026.7.28-568
- $87.99 –
- Free Shipping

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Conceptronic 4 Port DB9-RS232 Serial PCIe Card
- Model #: TOLDB0D96KXT8D
- $194.99 –
- Free Shipping

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212 Main 16 Port Low-Profile Serial Card - High - Speed PCIe Serial Adapter
- Model #: TOLDB0D9P8K8WR
- $737.99 –
- Free Shipping

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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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KALEA-INFORMATIQUE Mini PCIe 2 Port RS422 RS485 DB9 Serial Card with EXAR XR17V352 Chipset Supplied with Adapters for Wire to Wire Mount.
- Model #: TOLDB0GH9ZDZG3
- $134.99 –
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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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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
Limited time offer, ends 08/15
- Model #: C7FK-OYS-2026.7.28-837
- $127.99 –
- Free Shipping

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Syba 2 Port DB9 RS-422 / 485 Serial PCI-Express 2.0 x1 Card (SI-PEX15043)
Limited time offer, ends 08/15
- Model #: C7FK-OYS-2026.7.28-550
- $97.99 –
- Free Shipping

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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 –
- 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 #: CHIYB0F3CYL57T
- $155.99 –
- Free Shipping

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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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2-Port Serial to Ethernet Servers USR-N520-H7-6 with RS232/485 Interface (USR-N520-H7-6 * 1 Set)
- Model #: CHIYB0DJFG5YHW
- $178.99 –
- 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
- Free Shipping

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MOXA NPort 5650-8-DT-J 8-Port Serial Device Server, 10/100 Ethernet, RS-232/422/485. Connector, RJ-45 8pin Jack connectors, i15KV ESD, 12-48VDC, 110V Power Supply
Limited time offer, ends 08/15
- Model #: HANRB07CCJHGHM
- $1,198.99 –
- More options from $1,198.99 - $1,710.99
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For ESP-01 Esp8266 ESP-01S Model Of The ESP8266 Serial Breadboard Adapter To WiFi Transceiver Module Breakout UART Module
Limited time offer, ends 08/15
- Model #: .jiudian-YC5KU-1016
- $12.99 –
- Free Shipping

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HF-2211 Serial to Ethernet Converter Device Server RS232 RS485 RS422 to WiFi Network Module with Wide 5-36VDC Input
- Model #: CHIYB0B61X3BG2
- $85.99 –
- More options from $85.99
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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 –
- More options from $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 –
- More options from $414.19
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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
Limited time offer, ends 08/15
- Model #: LHXC6W1JU09-6
- $39.59 –
- 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
Limited time offer, ends 08/15
- Model #: DW-TXI038
- $45.99 –
- Free Shipping

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USR-DR302 DIN-Rail Modbus RS485 Serial Port to Ethernet Converter Bidirectional Transparent Transmission Between RS485 and RJ45
Limited time offer, ends 08/15
- Model #: LC6W1J25-1347
- $96.02 –
- Free Shipping

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- $35.00
- $34.30 –

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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



