Startech IT

StarTech 4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART - 4 x 9-pin DB-9 Male RS-232 Serial PCI Express x1 PEX4S553

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SKU:
18142670
MPN:
pex4s553
Availability:
Out of stock
Stock Update:
12/12/2025 11:09:16 AM PST
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Out of stock

Stock Update:
12/12/2025 11:09:16 AM PST

Description



This item is brand-new, factory sealed.

The PEX4S553 4-Port Native PCI Express RS232 Serial Adapter Card with 16550 UART lets you add 4 RS232 (DB9) serial ports, using a single PCI Express expansion slot.

Based on a native single-chip design, this 4-port serial adapter card allows you to harness the full capability offered by PCI Express (PCIe), while reducing the load applied to the CPU by as much as 48% over conventional bridge-chip serial cards.

The RS232 Serial Adapter Card includes 4 half-height/low-profile brackets, allowing the card to be installed into almost any PC case, regardless of form factor.

Backed by a StarTech.com Lifetime warranty and free lifetime technical support.



Package Contents:
  • 4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART
  • 1 x Full Profile Bracket With Two DB9 Connectors
  • 4 x Low Profile Bracket
  • 1 x Driver CD
  • 1 x Instruction Manual
  • Features

    Package Contents:   
    • 4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART
    • 1 x Full Profile Bracket With Two DB9 Connectors
    • 4 x Low Profile Bracket
    • 1 x Driver CD
    • 1 x Instruction Manual

     

    Additional Information:   
  • Windows® 10 (32/64), 8 / 8.1 (32/64), 7 (32/64), Vista (32/64), XP (32/64)
  • Windows Server® 2012, 2008 R2, 2003
  • Mac OS® 10.10
  • Linux

  •  

    Environmentally Friendly:   
    Yes

     

    Country of Origin:   
    China

     

    Specs

    Physical Characteristics
    Form FactorPlug-in Card
    Weight (Approximate)2.60 oz
    Card HeightDual-profile
    Length4.7"
    Height0.7"
    Width5.1"
    Warranty
    Limited WarrantyLifetime
    Interfaces/Ports
    Number of Serial Ports (External)4
    General Information
    Brand NameStarTech.com
    Manufacturer Website Addresshttp://www.startech.com
    Marketing InformationThe PEX4S553 4-Port Native PCI Express RS232 Serial Adapter Card with 16550 UART lets you add 4 RS232 (DB9) serial ports, using a single PCI Express expansion slot.
    Based on a native single-chip design, this 4-port serial adapter card allows you to harness the full capability offered by PCI Express (PCIe), while reducing the load applied to the CPU by as much as 48% over conventional bridge-chip serial cards.
    The RS232 Serial Adapter Card includes 4 half-height/low-profile brackets, allowing the card to be installed into almost any PC case, regardless of form factor.
    Backed by a StarTech.com Lifetime warranty and free lifetime technical support.
    More from the Manufacturer
    More from the Manufacturer
    Product TypeSerial Adapter
    Product Name4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART
    ManufacturerStarTech.com
    Manufacturer Part NumberPEX4S553
    Packaged Quantity1
    Technical Information
    Data Transfer Rate128kB/s
    Host InterfacePCI Express x1
    UART Type
    Platform SupportedPC

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    Warranty Information

    All Items are Brand New, Factory Sealed and come with a standard warranty. [Read our policies]
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    StarTech 4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART - 4 x 9-pin DB-9 Male RS-232 Serial PCI Express x1 PEX4S553