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StarTech 2 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART

SKU: STPEX2S553 MFR: PEX2S553
$55.99
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Key Features

  • Add two RS232 serial ports to your desktop PC with this PCI Express adapter card.
  • Experience reliable serial communication with a 16550 UART & up to 460.8 Kbps.
  • This standard profile card includes a low profile bracket for versatile form factor.
  • Wide OS compatibility: Windows, Mac, and Linux ensure seamless integration.
  • Perfect for connecting serial devices like printers, scanners, and industrial controls.
  • Backed by a StarTech 2-year warranty, ensuring quality and peace of mind.
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Review Summary

2023-05-08T20:00:00

Rated 1 out of 5

driver does not work on Windows10

I tried both the driver on the CD and the one provided online for this part number. The installation invariably breaks with "Installation is aborted" without any further information. Avoid!

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StarTech 2 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART Specifications

  • Bus Type

    PCI Express

  • Card Type

    Standard Profile (LP bracket incl.)

  • Chipset ID

    ASIX/MosChip - MCS9922CV-AA

  • Interface

    Serial

  • Port Style

    Integrated on Card

  • Ports

    2

  • FIFO

    128 Bytes

  • Max Baud Rate

    460.8 Kbps

  • Serial Protocol

    RS-232

  • Connector Type(s)

    1 - PCI Express x1 Male

  • External Ports

    2 - DB-9 (9 pin; D-Sub) Male

  • Internal Ports

    1 - LP4 (4 pin; Molex Large Drive Power) Male

  • OS Compatibility

    Windows 10 (32/64), 8 / 8.1 (32/64), 7 (32/64), Vista (32/64), XP (32/64), XP Embedded, POS Ready 2009, Embedded System 2009, CE 5.0/6.0, 2000, 98SE, 95, DOS
    Windows Server 2012, 2008 R2, 2003
    Mac OS 10.4 and later (tested up to 10.10)
    Linux kernel 2.6.x

  • Humidity

    5-85% RH

  • Operating Temperature

    -10 to 80 deg. C / 14 to 176 deg. F

  • Storage Temperature

    -20 to 100 deg. C / -4 to 212 deg. F

  • Certifications

    RoHS Complaint
    CE
    FC

  • Dimensions (H x L x W)

    0.8 x 4.1 x 4.7" / 2.03 x 10.41 x 11.94cm

  • Weight

    2.2oz / 62.37g

  • UPC Code

    065030841740

About StarTech 2 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART

If you're looking to expand your computer's connectivity, the PEX2S553 PCI Express Serial Card is an essential addition to your hardware setup. This high-quality, durable 2-port serial adapter card transforms a single PCI Express slot into two RS232 (DB9) serial ports, offering a reliable solution for connecting a multitude of serial devices to your computer.

Engineered with a native single-chip design that eliminates the need for a bridge chip, this efficient adapter card maximizes the high-speed potential of PCI Express (PCIe). It significantly reduces the load on the CPU by up to 48% compared to conventional serial cards, ensuring smoother and more stable performance.

The RS232 Serial Adapter Card is designed with versatility in mind, showcasing broad compatibility with a wide array of operating systems, including Windows 2000/XP/2003/Vista/Windows 7/Server 2008 R2 (32 and 64 bit), Linux Kernel 2.6.11 and up, and MAC OS 10.4 and above. This makes it a user-friendly choice for professionals who require seamless integration with various platforms.

Installation is made effortless with the inclusion of an optional half-height/low profile bracket, allowing for easy fitment in any sized computer case, whether it's a compact form factor or a full-sized tower. This product serves as an upgraded replacement for the PEX2S552 card, maintaining the legacy of quality and reliability.

Key features of this efficient 2-port native PCI Express RS232 serial adapter card include:

- Two high-speed RS232 serial ports capable of data transfer rates up to 460.8 Kbps, ensuring swift and efficient communication with serial devices.
- Compliance with PCI Express base specifications revision 1.0a, guaranteeing a stable connection and reliable performance.
- The inclusion of a half-height/low profile mounting bracket to accommodate various system form factors.
- Selectable power output on pin 9 for the serial port, providing versatility for connected devices.
- A 128-byte deep FIFO per transmitter and receiver, which minimizes the risk of data overflow and ensures smooth data flow.
- Native single-chip, single-lane PCI Express integration for optimal throughput and reduced latency.
- Automated out-of-band and in-band flow control using CTS/RTS, DSR/DTR, and programmable Xon/Xoff in both directions, which helps prevent data loss and ensures integrity during transmission.

The PEX2S553 is not only easy to install but also comes with comprehensive step-by-step instructions, saving you time and hassle during setup. Its applications are vast, suitable for self-service automated machines, POS retail systems, bank teller workstations, standard ATMs, and control of multiple surveillance/security cameras, among others. This adapter card is the perfect solution for any application that requires reliable and efficient serial port communication.

StarTech 2 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART Features

  • High-speed 2-port PCI Express RS232 serial adapter card for efficient data transfer
  • Native single-chip design reduces CPU load, enhancing system performance
  • Broad compatibility with various operating systems including Windows, Linux, and Mac OS
  • Optional half-height/low profile bracket for easy installation in any computer case
  • Automated out-of-band and in-band flow control for reliable data transmission
  • Versatile application across self-service machines, POS systems, bank workstations, ATMs, and surveillance systems

Warranty Information

This product has a limited warranty of 24 months.

Key Features

  • Add two RS232 serial ports to your desktop PC with this PCI Express adapter card.
  • Experience reliable serial communication with a 16550 UART & up to 460.8 Kbps.
  • This standard profile card includes a low profile bracket for versatile form factor.
  • Wide OS compatibility: Windows, Mac, and Linux ensure seamless integration.
  • Perfect for connecting serial devices like printers, scanners, and industrial controls.
  • Backed by a StarTech 2-year warranty, ensuring quality and peace of mind.

What's in the box:

  • StarTech 2 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART
  • 2x Low Profile Brackets
  • Driver CD
  • Instruction Manual
  • StarTech 2 Year Warranty