serial port | Newegg.com

Type: PCI Express to Serial Port Card
External Ports: 2 x Serial Ports
Operating Systems Supported: Supports Windows 2000, XP 32/64-bit, Server 2003 32/64-bit, Vista 32/64-bit, Server 2008 32/64-bit
Weight: 0.35
Model #: SD-PEX15022

$30.99
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SYBA PCI-Express 1-Port DB9 RS232 Serial Card with Low Profile Bracket - RoHS Model SD-PEX15021

Type: PCI Express to Serial Port Card
External Ports: 1 x Serial Port
Operating Systems Supported: Windows 2000, XP 32/64-bit, Server 2003 32/64-bit, Vista 32/64-bit, Server 2008 32/64-bit
Weight: 1
Model #: SD-PEX15021

$17^.99 –
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StarTech.com PEX1S953LP 1 Port RS232 Serial Adapter Card with 16950 UART - PCI Express Serial Port Card - 921.4Kbps - Windows & Linux Compatible

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StarTech.com PEX1S953LP 1 Port RS232 Serial Adapter Card with 16950 UART - PCI Express Serial Port Card - 921.4Kbps - Windows & Linux Compatible

Type: PCI Express to Serial Port Card
External Ports: 1 x DB-9 (9 pin, D-Sub) Male
Internal Ports: 1 x LP4 (4 pin; Large Drive Power) Male Input 1 x PCI Express x1 Male
Operating Systems Supported: Windows Server 2003, 2008 R2, 2012, 2012 R2, 2016 Linux 2.4.x to 2.6.x LTS Versions only
Model #: PEX1S953LP

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StarTech PEX16S550LP PCI Express Serial Card - 16 Port Low-Profile Serial Card - High-Speed PCIe Serial Adapter - Serial Controller DB9 RS232

Type: PCI Express
External Ports: 16 x DB-9 (9 pin, D-Sub) Male
Internal Ports: 1 x SP4 (4 pin, Small Drive Power) Male
Operating Systems Supported: Windows 7, 8, 8.1, 10 Windows Server 2003, 2008 R2, 2012, 2012 R2, 2016 Linux 2.6x to 4.2x LTS Versions only
Model #: PEX16S550LP

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StarTech.com PEX4S953LP 4-Port PCI Express RS232 Serial Adapter Card - 16950 UART - 256-byte FIFO Cache - ASIX AX99100 - Low Profile Bracket - Replacement for PEX4S952LP (PEX4S953LP)

Type: PCI Express to Serial Port Card
External Ports: 4 - DB-9 (9 pin, D-Sub) Male
Internal Ports: 1 - LP4 (4 pin; Large Drive Power) Male Input
Operating Systems Supported: Windows 7, 8, 8.1, 10 Windows Server 2003, 2008 R2, 2012, 2012 R2, 2016 Linux 2.4.x to 2.6.x LTS Versions only
Model #: PEX4S953LP

$109.99
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StarTech.com PEX2S953LP 2 Port RS232 Serial Adapter Card with 16950 UART - PCI Express Serial Port Card - 921.4Kbps - Windows & Linux Compatible

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(3)

StarTech.com PEX2S953LP 2 Port RS232 Serial Adapter Card with 16950 UART - PCI Express Serial Port Card - 921.4Kbps - Windows & Linux Compatible

Type: PCI Express to Serial Port Card
External Ports: 2 x DB-9 (9 pin, D-Sub) Male
Internal Ports: 1 x LP4 (4 pin; Large Drive Power) Male Input 1 x PCI Express x1 Male
Operating Systems Supported: Windows Server 2003, 2008 R2, 2012, 2012 R2, 2016 Linux 2.4.x to 2.6.x LTS Versions only
Model #: PEX2S953LP

$55.99
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StarTech.com PEX1S1P950 PCIe Card with Serial and Parallel Port - PCI Express Combo Adapter Card with 1x DB25 Parallel Port & 1x RS232 Serial Port - Expansion/Controller Card - PCIe Printer Card

Type: PCIe Card with Serial and Parallel Port
External Ports: DB-25 (25 pin, D-Sub) DB-9 (9 pin, D-Sub)
Standard: PCI Express x1
Model #: PEX1S1P950

$64.99
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Waveshare RS232 RS485 to RJ45 Ethernet Serial Server, RS232 and RS485 Dual Channels Independent Operation, Dual Ethernet Ports, Common Network Port

Model #: PEGLB0CGLQ8WXQ

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StarTech 2-Port PCIe to RS232 DB9 Serial Card 21050PCSERIALCARD

Model #: 21050PCSERIALCARD

$91.99
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LinksTek 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)

Model #: 386044942705

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2-Port PCIe Serial Expansion Card with Industrial DB9 RS232 COM Ports, 16C550 UART WCH382 Chip for Windows XP, Vista,7, 8.x, 10, 11 32/64bit and Linux PCs, Low Bracket Included

Brand: HP
Part Number: 749235272744
Connectors: 1 x RJ45
Interface: PCI
Model #: 617593472331

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PC|-E serial card, PCle to RS232 COM interface, industrial control 4-port expansion card, AX9910

Model #: C075.311

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RS232 Serial Port & DB25 Printer Parallel Port to PCI-E Card Adapter Converter

Model #: IW-ADD-convert-84

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USB to RS232 6Pin 2.54mm Port Serial Adapter Cable Chip Pinout TX RX GND VCC CTS RTS Fit for Windows OS Linux

Model #: PEGLB0DYNTRKPJ

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USB to 4-Port Independent RS-485/RS-232 Converter RS485 RS232 COM Serial Port Adapter Cable

Model #: PEGLB0GCM313G5

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4 Port RS485 RS232 RS422 Serial Device Server DIN Rail Mount Industrial Ethernet Converter 10 100Mbps Multi Protocol Serial to Network Module

Model #: PEGLB0G4N3X5TT

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PCIe to 2-Port Serial Card, 9-Pin RS232 Adapter Card, Parallel & COM Port Expansion Card, WCH382L

Model #: C7FW0626-JIA-94

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Industrial 4 in 1 USB to RS232 RS485 RS422 TTL 3.3V 5V Serial Converter with FTDI FT232RNL Chip USB 2.0 A to Terminal Block Adapter COM Port for Windows, Linux, Android, MacOS

Model #: PEGLB0DQV13HDL

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PCIe to 4-Port RS232 Serial Card ASIX AX99100, Industrial 4x DB9 COM Port Expansion, for Desktop & Industrial Control

Model #: C7FW0626-JIA-43

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USB to RS485 PRO Serial Port Converter Module, FT232/SP3485 Chip Isolated Industrial USB to Serial Adapter for Industrial Control Equipment

Model #: PEGLB0F23PPQN5

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Mini PCIe to 4-Port RS232 Serial Card, Industrial-Grade DB9 COM Expansion Adapter Mini PCI Express to RS-232 Converter, -40°C~+85°C Working Temperature

Model #: TOLDB0FY3F9QMM

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USR-W630S RS232 RS485 Serial to Wi fi and Ethernet Converter Dual-Band Dual Ethernet Port Wi Fi5 Serial Server Qualcomm Version (Full Kit)

Model #: PEGLB0FS6YG41T

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CableMax 4 port Serial RS-232 and 1 LPT port I/O PCI-Express 1x Card

Type: PCI Express to Serial Port Card
External Ports: 4 x Serial Ports
Model #: CM-4S1PRS232

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Combo Serial Parallel Expansion Card PCI Express to Printer LPT Port RS232 Com Port Adapter IEEE 1284 Controller Card WCH382 Chip for Desktop PC Windows 10 with Low Bracket

Model #: LiRDl-B07PXB77W6

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USB to 485/422 Converter Serial Port Industrial Communication Module RS485 Nine pin Nine pin DB9 Adapter RS232 Interface Laptop Adapter 3M

Model #: PEGLB093SJRS9N

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USB to RS485 Converter, Serial Port Module, Industrial Control Adapter with FT232 SP3485 Industrial Chips & Isolated Circuit, Aluminum Alloy Shell

Model #: PEGLB0GM1BY3DN

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PCI to 2 port Serial 1 port parallel Riser Card ADD ON CARD RS-232 RS232 with ASIX/AX9865 chip

Model #: DIEWUseries-23

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3m USB to 485/422 Serial Port Industrial Serial Port RS485 to USB Communication Converter USB to 485 Serial Port Module bidirectional Transmission Shielded Wire

Model #: PEGLB093NZTJ3M

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PCI Serial Port Card PCI To 2 Ports RS232 COM Converter Card

Type: Controller Card
Model #: CL-HD-Addon-116

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CORN Sata to IDE Adapter Converter 1.5Gbs 2.5 Sata Female to 3.5 inch IDE Male 40 pin port Support ATA 133 100 SSD HDD CD DVD Serial

Model #: DZ-ZHT-118

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Gearmo 2-Port USB 3.2 Gen 1 Industrial Surface & DIN-Rail Mount Hub w/ Gigabit Ethernet & DB9 Serial FTDI Chipset

Type: USB
Standards: USB 3.0
Transfer Rate: 1.5/12/480Mbps 5Gbps
LEDs: Port Status Power RX / TX
Model #: GM-HU32ES

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SYBA PCI to Serial 2-port host controller card Model SD-PCI-2S

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SYBA PCI to Serial 2-port host controller card Model SD-PCI-2S

Type: PCI to Serial Port Card
External Ports: 2x DB9 serial port connectors
Operating Systems Supported: Windows 98SE/ME/2000/XP/NT4.0, Linux & DOS Operating System
Weight: 0.4
Model #: SD-PCI-2S