StarTech 2-Port RS232 PCI Express Serial Card with Breakout Cable

StarTech 2-Port RS232 PCI Express Serial Card with Breakout Cable

StarTech 2-Port RS232 PCI Express Serial Card with Breakout Cable

No Longer Available

Product Highlights

  • Native Single-Chip Design
  • Single-Lane (x1) PCIe Design
  • Throughput of up to 2.5 Gbps
  • Data Transfer Rates of up to 250 Kbps
  • Microsoft WHQL Certified
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StarTech PEX2S553B overview

  • 1Description

The 2-Port RS232 PCI Express Serial Card with Breakout Cable from StarTech allows you to add two RS232 serial ports using a single PCIe expansion slot. With the included breakout cable, you can easily add two ports to a single low-profile slot.

The PCIe serial card features a native single-chip design that provides optimum reliability and speed, reducing the CPU load by up to 48% over conventional bridge-chip serial cards - a cost-effective solution for connecting legacy serial devices to PCIe-enabled computers. The multi-port PCIe serial adapter includes both full- and low-profile/half-height brackets for compatibility with standard and small form factor computers. It is also compatible with Windows, Linux and Mac operating systems.

Lower CPU load, native single-chip, single-lane (x1) PCIe design with throughput of up to 2.5 Gbps ensures optimal system performance (up to 48% less CPU load)
Included standard and low-profile/half-height brackets make the card perfect for any application, including small form factor embedded applications
Breakout cable design means that only one expansion slot is needed to add two serial ports to any system
On-chip 256-byte depth FIFO in transmit/receive path of each port
Supports hardware and software flow control
Automated out-of-band flow control using CTS/RTS and DSR/DTR
Supports data transfer rates of up to 250 Kbps on each port
Compliant with PCIe base specifications revision 1.0a


Point-of-Sale (POS credit/debit card readers, receipt printers, barcode scanners, cash registers and scales)
Manufacturing (CNC machinery, process control equipment, barcode scanners, serial printers)
Connect specialized parallel and serial devices like printers, scanners, ISDN terminal adapters, CD-R/RWs, Zip drives and memory card readers
Environmental control (lighting, temperature, clocks)
Entertainment (video lottery terminals, slot machines, gaming systems)
Healthcare (patient monitoring equipment, nurses' stations, modems)
Security (UPS control, access key panels, video cameras, card readers, modems)
Hospitality/restaurant (serial printers, barcode scanners, keyboard, mouse, receipt printer, credit/debit card reader)
Consumer (modems, PDAs, digital cameras, printers)
ISDN networking
In the Box
StarTech 2-Port RS232 PCI Express Serial Card with Breakout Cable
  • Breakout Cable
  • Full-Profile Bracket
  • Low-Profile Bracket
  • Driver CD
  • Lifetime Warranty
  • Table of Contents
    • 1Description

    StarTech PEX2S553B specs

    Card Type Standard profile (low profile bracket included)
    Port Style Dongle (included)
    Ports 2
    Interface Serial
    Bus Type PCIe
    Chipset ID ASIX/MosChip - MCS9922CV-AA
    Connector Type 1 x PCIe x1 male
    External Ports 2 x DB-9 (9-pin; D-Sub) male
    Max Baud Rate 230.4 Kbps
    Serial Protocol RS-232
    Data Bits 5, 6, 7, 8
    FIFO Buffer 256 bytes
    Flow Control Hardware and software
    Parity Even, odd, none, space and mark
    Stop Bits 1, 2
    OS Compatibility Windows 8 (32/64-bit), 7 (32/64-bit), Vista (32/64-bit), XP (32/64-bit), XP Embedded, POS Ready 2009, Embedded System 2009, CE 6.0/5.0, 2000, 98SE, 95, DOS
    Windows Server 2008 R2, 2003 (32/64-bit)
    Mac OS 10.4 and up (tested up to 10.9), Linux kernel 2.6.x
    Microsoft WHQL Certified Yes
    Humidity 5 - 85% RH
    Operating Temperature 32 to 158°F (0 to 70°C)
    Storage Temperature -40 to 185°F (-40 to 85°C)
    Certifications CE, RoHS
    Dimensions (LxWxH) 3.2 x 0.6 x 2.7" (81 x 14 x 68.5 mm)
    Weight 1.6 oz (46 g)
    Packaging Info
    Package Weight 0.4 lb
    Box Dimensions (LxWxH) 6.7 x 5.6 x 1.3"

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