StarTech.com 2-Port RS232 Serial Adapter Card, PCIe, 16950 UART, Low-Profile, 921.4Kbps Speed, Windows & Linux Compatible - PEX2S953LP (Lifetime Warranty)

Close-up view of StarTech.com dual RS232 serial adapter card showing PCIe interface and two DB9 ports-alternate-image1
Detailed view of dual DB9 serial ports with metal housing and mounting screws-alternate-image2
PCIe serial adapter card circuit board showing Asix chipset and components-alternate-image3
Side view of serial adapter showing power connector and distribution components-alternate-image4
Detailed view of serial adapter PCB showing component layout and engineering-alternate-image5
Complete package contents including adapter card, brackets, manual and accessories-alternate-image6
Close-up view of StarTech.com dual RS232 serial adapter card showing PCIe interface and two DB9 ports-alternate-image1
Detailed view of dual DB9 serial ports with metal housing and mounting screws-alternate-image2
PCIe serial adapter card circuit board showing Asix chipset and components-alternate-image3
Side view of serial adapter showing power connector and distribution components-alternate-image4
Detailed view of serial adapter PCB showing component layout and engineering-alternate-image5
Complete package contents including adapter card, brackets, manual and accessories-alternate-image6
Close-up view of StarTech.com dual RS232 serial adapter card showing PCIe interface and two DB9 ports-alternate-image1
Detailed view of dual DB9 serial ports with metal housing and mounting screws-alternate-image2
PCIe serial adapter card circuit board showing Asix chipset and components-alternate-image3
Side view of serial adapter showing power connector and distribution components-alternate-image4
Detailed view of serial adapter PCB showing component layout and engineering-alternate-image5
Complete package contents including adapter card, brackets, manual and accessories-alternate-image6
StarTech.com 2-Port RS232 Serial Adapter Card, PCIe, 1695...
Close-up view of StarTech.com dual RS232 serial adapter card showing PCIe interface and two DB9 ports-alternate-image1
Detailed view of dual DB9 serial ports with metal housing and mounting screws-alternate-image2
PCIe serial adapter card circuit board showing Asix chipset and components-alternate-image3
Side view of serial adapter showing power connector and distribution components-alternate-image4
Detailed view of serial adapter PCB showing component layout and engineering-alternate-image5
Complete package contents including adapter card, brackets, manual and accessories-alternate-image6

StarTech.com 2-Port RS232 Serial Adapter Card, PCIe, 16950 UART, Low-Profile, 921.4Kbps Speed, Windows & Linux Compatible - PEX2S953LP (Lifetime Warranty)

StarTech.com PEX2S953LP

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$66.49
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Product Key Features

  • 🔌 2 RS232 (DB9) serial ports via PCIe slot
  • ⚡ High-speed data transfer up to 921.4Kbps
  • 💻 Compatible with Windows and Linux systems
  • 🔧 Includes both low-profile and full-profile brackets
  • 🎯 16950 UART compatibility with 256-byte FIFO
  • ⚙️ Supports 5-9 data bits configuration
  • 🔋 5/12V power output on Pin 9 with external power
  • ♾️ Lifetime warranty included
  • 🌱 Environmentally certified (WEEE, REACH, RoHS)
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StarTech.com 2-Port RS232 Serial Adapter Card, PCIe, 16950 UART, Low-Profile, 921.4Kbps Speed, Windows & Linux Compatible - PEX2S953LP (Lifetime Warranty)

This item: StarTech.com 2-Port RS232 Serial Adapter Card, PCIe, 1695...

$66.49

Total price: $66.49
  • Description
  • Tech Specs
  • Refund Policy

StarTech.com

PEX2S953LP

StarTech.com PEX2S953LP 2-Port RS232 Serial Adapter Card - PCIe with 16950 UART

Enhance your system's connectivity with the StarTech.com PEX2S953LP, a high-performance dual RS232 serial adapter card featuring 16950 UART technology. This PCIe serial card delivers exceptional communication capabilities with data transfer speeds up to 921.4Kbps, making it ideal for connecting serial devices like card readers, printers, PIN pads, and modems.

Advanced Serial Communication Features

  • Industry-standard 16950 UART compatibility for reliable performance
  • High-speed data transfer rates up to 921.4Kbps
  • 256-byte FIFO depth per transmitter and receiver
  • Flexible data bit support (5, 6, 7, 8, 9 bits)
  • Powered by Asix AX99100 chipset
  • PCI Express 1.1 compliant architecture

Versatile Installation Options

The PEX2S953LP comes with both low-profile and full-profile brackets, ensuring compatibility with various PC case form factors. The card offers extensive operating system support, including Windows and Linux, making it an ideal solution for mixed computing environments.

Enhanced Power Management

This serial adapter card features 5/12V power output capability on Pin 9 when connected to external power, providing additional flexibility for powered serial devices.

Package Contents

  • 2-Port RS232 Serial Adapter Card with 16950 UART
  • Full-Profile Bracket
  • User Manual

Environmental Compliance

This environmentally conscious product meets WEEE, REACH, and RoHS standards, demonstrating StarTech.com's commitment to sustainable technology. Backed by StarTech.com's lifetime warranty and free technical support, the PEX2S953LP offers reliable, long-term value for your serial connectivity needs.

Close-up view of StarTech.com dual RS232 serial adapter card showing PCIe interface and two DB9 ports

High-Speed Dual RS232 Ports for Enhanced Connectivity

The StarTech.com PCI Express serial adapter features two high-performance RS232 ports that deliver reliable serial communication. Built around the industry-standard 16950 UART chipset, this card enables data transfer rates up to 921.4Kbps while maintaining excellent signal integrity and minimizing CPU overhead. The integrated 256-byte FIFO buffers ensure smooth data flow even during peak system loads.

Technical Specifications

  • 16950 UART chipset for reliable high-speed data transfer
  • Dual RS232 DB9 ports with transfer rates up to 921.4Kbps
  • 256-byte FIFO buffers per port for optimal performance

Applications

  • Industrial automation and machine control systems
  • Point-of-sale terminal connectivity
  • Legacy equipment integration in modern infrastructure
Detailed view of dual DB9 serial ports with metal housing and mounting screws

Industrial-Grade DB9 Serial Ports

Each DB9 port is engineered with robust metal housing and secure mounting screws, ensuring reliable connections in demanding environments. The ports support standard RS232 serial protocols with configurable data bits, making them compatible with a wide range of industrial and commercial equipment. The metal bracket design provides excellent EMI shielding and structural integrity.

Technical Specifications

  • Metal-housed DB9 connectors for durability
  • EMI-shielded port design
  • Configurable data bit support (5-9 bits)

Applications

  • Manufacturing equipment integration
  • Scientific instrument control
  • Industrial sensor monitoring
PCIe serial adapter card circuit board showing Asix chipset and components

Advanced PCIe Architecture

The adapter's PCIe architecture delivers superior performance through dedicated bandwidth allocation. The Asix AX99100 chipset provides excellent compatibility across operating systems while maintaining low latency. The card's efficient design includes power management features and supports both 3.3V and 5V signaling for maximum device compatibility.

Technical Specifications

  • PCI Express 1.1 compliant interface
  • Asix AX99100 chipset for broad compatibility
  • Supports both 3.3V and 5V signaling

Applications

  • Server management and control
  • Embedded systems development
  • Legacy hardware integration
Side view of serial adapter showing power connector and distribution components

Efficient Power Distribution Design

The card features an intelligent power distribution system with support for external power connection. The integrated power management ensures stable operation of connected devices while maintaining efficient energy usage. The design includes protection circuits to prevent damage from power fluctuations.

Technical Specifications

  • Integrated power management system
  • External power support via connector
  • Built-in power protection circuits

Applications

  • Critical infrastructure monitoring
  • Power-sensitive device control
  • 24/7 operation environments
Detailed view of serial adapter PCB showing component layout and engineering

Professional Circuit Engineering

The adapter's circuit board showcases professional engineering with high-quality components and precise layout. The multi-layer PCB design optimizes signal integrity while minimizing electromagnetic interference. Surface-mount technology ensures reliable operation and excellent thermal management.

Technical Specifications

  • Multi-layer PCB design for signal integrity
  • Professional-grade surface-mount components
  • Optimized thermal management layout

Applications

  • Mission-critical applications
  • High-reliability environments
  • Professional system integration
Complete package contents including adapter card, brackets, manual and accessories

Complete Installation Kit

The package includes everything needed for professional installation, including both low-profile and full-height brackets. The comprehensive user manual provides detailed setup instructions and configuration guidelines. All mounting hardware is included for secure installation in various system configurations.

Technical Specifications

  • Full and low-profile brackets included
  • Complete mounting hardware set
  • Comprehensive installation manual

Applications

  • System builder integration
  • IT infrastructure upgrades
  • Professional installations
General Information
ManufacturerStarTech.com
Manufacturer Part NumberPEX2S953LP
Brand NameStarTech.com
Product Name2-Port RS232 Serial Adapter Card with 16950 UART
Packaged Quantity1
Product TypeSerial Adapter
Technical Information
Host InterfacePCI Express
Platform SupportedPC,Linux
Interfaces/Ports
Number of Serial Ports (External)2
Physical Characteristics
Form FactorPlug-in Card
Card HeightLow-profile
Miscellaneous
Package Contents
  • 2-Port RS232 Serial Adapter Card with 16950 UART
  • 1 x Full-Profile Bracket
  • 1 x User Manual
Environmentally FriendlyYes
Environmental CertificationWEEE,REACH,RoHS
Country of OriginTaiwan
Warranty
Limited WarrantyLifetime
Return Policy Time to Return
Standard Return Policy We offer a hassle-free 30-day returns policy for domestic (US) orders, excluding non-refundable items. Refund or Replacement within 30 days of the delivery date. All products that fall under the Standard Return Policy qualify for our 30-Day Hassle-Free Returns.
Replacement Only Return Policy Replacement within 30 days of the delivery date.
Manufacturer Only Return Policy Covered by the manufacturer's warranty. Please refer to the terms and conditions for the manufacturer's warranty or contact the manufacturer.
FAQ
The StarTech.com PEX2S953LP is a 2-port RS232 serial adapter card featuring a 16950 UART interface, PCIe connectivity, and supports data transfer speeds up to 921.4Kbps. Key features include 256-byte FIFO per transmitter and receiver, support for 5-9 data bits, 5/12V power output on Pin 9 with external power, and compatibility with both Windows and Linux operating systems. The card comes with both low-profile and full-profile brackets for flexible installation.
This adapter card provides two RS232 (DB9) serial ports that can connect to various serial devices including card readers, printers, PIN pads, and modems. The ports are externally accessible and support communication speeds up to 921.4Kbps, making them suitable for both legacy and modern serial devices requiring RS232 connectivity.
Yes, the PEX2S953LP is designed for versatile installation across different computer form factors. It comes pre-configured with a low-profile bracket installed and includes an optional full-profile bracket in the package. This dual-bracket design ensures compatibility with both small form factor and standard desktop computers.
The PEX2S953LP offers broad operating system support, specifically compatible with Windows and Linux platforms. This wide OS compatibility makes it ideal for use in mixed computing environments and ensures easy integration into existing systems.
The package includes the 2-Port RS232 Serial Adapter Card with 16950 UART, a full-profile bracket for standard cases (low-profile bracket pre-installed), and a user manual. This complete package provides everything needed for installation in either low-profile or full-profile systems.
The StarTech.com PEX2S953LP comes with a lifetime limited warranty and includes free lifetime technical support. This comprehensive warranty coverage demonstrates StarTech.com's confidence in the product's reliability and their commitment to customer satisfaction.
The adapter card features an industry-standard 16950 UART with a maximum baud rate of up to 921.4Kbps. It includes a 256-byte FIFO buffer per transmitter and receiver, supports multiple data bit configurations (5, 6, 7, 8, or 9 bits), and uses the Asix AX99100 chipset. The card is PCI Express 1.1 compliant and can provide 5/12V power output on Pin 9 when external power is connected.
Yes, the PEX2S953LP meets multiple environmental certifications including WEEE, REACH, and RoHS compliance. These certifications confirm that the product meets international standards for environmental safety and responsible manufacturing practices.

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