StarTech.com 4-Port PCIe RS232 16550 PEX4S553 Serial Card Adapter

StarTech.com PEX4S553

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Manufacturer Part#  PEX4S553

UPC Code: 065030843553

Provantage Code:  STRN02R

  • Product Type: Serial Adapter
  • Limited Warranty: 2 Year
  • Form Factor: Plug-in Card
  • Host Interface: PCI Express x1
  • Data Transfer Rate: 1 Mbit/s

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StarTech.com PEX4S553 Specifications

    4-Port PCIe RS232 16550 PEX4S553 Serial Card Adapter


    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.


General Information
Product Name4-Port PCIe RS232 16550 PEX4S553 Serial Card Adapter
Manufacturer Part NumberPEX4S553
Packaged Quantity1
Product TypeSerial Adapter
Technical Information
Host InterfacePCI Express x1
Platform SupportedPC
Number of Serial Ports (External)4
Physical Characteristics
Form FactorPlug-in Card
Card HeightDual-profile
Limited Warranty2 Year
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
Green CompliantYes
Green Compliance Certificate / AuthorityRoHS
Other Information
Data Transfer Rate1 Mbit/s
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
UART Type16550


Supplies/Accessories for StarTech.com PEX4S553

StarTech.com 10ft DB9 RS232 Serial Null Modem Cable F/F

Mfg Part# SCNM9FF

StarTech.com 6ft Straight Through DB9 RS232 Serial Cable - F/F

Mfg Part# MXT100FF

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Mfg Part# AT925FF

StarTech.com DB9 to DB25 Serial Cable Adapter - F/M

Mfg Part# AT925FM

Considering a Volume Purchase?
You may be able to save even more on your order if you meet the following StarTech.com BIG DEAL qualifications:

Purchase a minimum of $3,000, or 200 units of the same product to qualify.

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StarTech.com PEX4S553