StarTech PCI Express Serial Card 2-Port Black 2S232422485-PC-CARD

Description

Product Overview

The StarTech 2-Port PCI Express Serial Card is engineered to deliver robust serial communication for a wide range of computing environments. Featuring the proven Asix AX99100 chipset, the card supports two independent 9‑pin DB9 connectors, each capable of operating in RS‑232, RS‑422, or RS‑485 mode based on user‑defined DIP switch settings. This flexibility allows a single card to replace multiple legacy adapters, reducing hardware complexity and simplifying cable management in dense server racks or workstation bays.

Power delivery is a standout feature of this adapter, offering configurable 12 V or 5 V output on a per‑port basis via pin 9, with the option to disable power entirely for devices that draw their own supply. LED indicators adjacent to each port provide real‑time visual feedback on transmit and receive activity, enabling quick diagnostics without the need for external monitoring tools. The card’s FIFO buffer depth of 256 bytes per port helps prevent data loss during high‑speed bursts, while the UART compatibility with 16C450 and 16C550 ensures seamless integration with legacy software.

Compatibility spans the latest Windows operating systems—including Windows 10, 11, and server editions—as well as modern Linux kernels (2.6.13 and newer). Driver support includes native kernel modules for Linux and signed drivers for Windows, guaranteeing stable operation across a broad spectrum of applications. The card’s low latency and support for baud rates up to 921.6 Kbps per port make it suitable for time‑critical tasks such as real‑time data acquisition, instrument control, and high‑throughput industrial automation.

Physically, the adapter measures 4.1 × 4 × 0.6 inches and weighs just 2.08 ounces, fitting comfortably into standard and low‑profile chassis. A pre‑installed standard‑profile bracket provides immediate compatibility with full‑height slots, while two additional low‑profile brackets are included for compact systems. The black enclosure not only offers a professional aesthetic but also provides shielding against electromagnetic interference, enhancing signal integrity in electrically noisy environments.

Reliability is reinforced by StarTech’s rigorous quality assurance processes, which include temperature cycling, vibration testing, and extended burn‑in periods. The card’s COM retention feature preserves port assignments across reboots, preventing software reconfiguration after power cycles. With a maximum of 256 byte FIFO per port, parity options (odd, even, mark, space, none), and support for 5‑ and 6‑bit data lengths, the adapter can be tailored to meet the exacting requirements of specialized protocols used in scientific, medical, and manufacturing sectors.

Usage

In industrial automation settings, the card excels as a bridge between modern PLCs and legacy serial devices. Engineers can connect multiple sensors, motor controllers, and programmable logic modules to a single server, consolidating data streams for centralized monitoring and control. The configurable power outputs eliminate the need for external power supplies, streamlining cable harnesses and reducing potential points of failure in harsh factory floors.

Retail point‑of‑sale terminals benefit from the adapter’s ability to handle barcode scanners, receipt printers, and magnetic stripe readers simultaneously. By supporting both RS‑232 and RS‑485 protocols, the card accommodates a diverse array of peripherals without requiring additional hardware. The LED status indicators assist technicians in quickly identifying communication bottlenecks during peak transaction periods, ensuring uninterrupted checkout experiences.

Scientific laboratories and medical facilities often rely on precise serial interfaces for data logging, instrument control, and patient monitoring equipment. The high‑speed baud support and low latency of the StarTech card enable accurate time‑stamped data capture, while the robust UART compatibility ensures seamless operation with legacy software suites that have not been updated for USB‑based communication. Compatibility with both Windows and Linux platforms provides flexibility for research teams that employ mixed‑OS environments.

Why Choose Us

StarTech has built a reputation for delivering dependable connectivity solutions that meet the rigorous demands of enterprise and industrial customers. Each serial card undergoes a comprehensive testing regimen that includes electromagnetic compatibility (EMC) assessments, thermal stress analysis, and long‑duration reliability runs. This commitment to quality translates into a product that maintains consistent performance over years of continuous operation.

Customers receive more than just hardware; they gain access to dedicated technical support staffed by engineers familiar with serial communication intricacies. Whether troubleshooting driver installation on a new Linux distribution or configuring DIP switches for a specific protocol, the support team provides prompt, knowledgeable assistance. Additionally, the card is covered by a limited three‑year warranty, reflecting confidence in its durability and manufacturing standards.

The adapter is TAA‑compliant, making it suitable for government and defense procurement processes that require adherence to specific sourcing regulations. For installations where space is at a premium, the included low‑profile brackets enable deployment in compact chassis without sacrificing functionality. The combination of regulatory compliance, flexible mounting options, and comprehensive after‑sales service positions the StarTech serial card as a prudent investment for long‑term infrastructure projects.

Key Features

• Dual independent DB9 ports configurable for RS‑232, RS‑422, or RS‑485, simplifying multi‑device connections.
• Per‑port power selection of 12 V or 5 V with LED status indicators for easy monitoring and reduced cabling.
• Broad OS support including Windows 7‑11, Windows Server 2016‑2022, and Linux kernels 2.6.13+, ensuring seamless integration.
• Compact black enclosure with standard and low‑profile brackets, fitting a variety of chassis while providing EMI shielding.
• Three‑year warranty and dedicated technical support, offering peace of mind and expert assistance when needed.

FAQ

Can the card be used in a low‑profile desktop?

Yes, the package includes two low‑profile brackets that replace the standard bracket, allowing installation in compact cases without sacrificing any functionality.

What operating systems are supported?

The card works with Windows 7, 8, 8.1, 10, 11, Windows Server 2016, 2019, 2022, and Linux distributions using kernel version 2.6.13 or newer, provided the appropriate drivers are installed.

How do I configure the port mode (RS‑232/RS‑422/RS‑485)?

Each port features a set of DIP switches on the card. By setting the switches according to the user manual, you can select the desired protocol and voltage level for each individual port.

Is the card compatible with USB‑to‑serial adapters?

The card is a native PCI Express device and does not require USB adapters. However, it can coexist with USB‑to‑serial adapters in the same system without interference, allowing mixed connectivity options.

What is the warranty period?

StarTech provides a limited three‑year warranty covering defects in materials and workmanship, along with access to technical support for installation and troubleshooting.