8-Port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Card - 16C1050 UART - Low Profile Serial DB9 Controller/Expansion Card - 15kV ESD Protection - Windows/Linux

Low Profile Serial Card | Full Profile Brackets Incl | 921.4Kbps | Windows® and Linux®

Product ID: PEX8S1050LP

1 stars (1 reviews) |
  • 8 PORT SERIAL CARD: Serial controller card w/ 16C1050 UART based on the Systembase SB16C1058PCI, w/15kV ESD, 8x DB9 ports, bi-directional RS232 speeds up to 921.6Kbps per port & 256 byte FIFO buffer | An upgrade to our popular card PEX8S950LP
  • OPTIONAL CONFIGURABLE POWER: Multiport serial card provides 12v/5v, or none on pin 9 w/up to 3A total shared; 2 (1xDB44 to 4xDB9) breakout cables incl; Hex nuts incl for opt screw or nut DB9 interface
  • COMPATABILITY: 2 low profile brackets for PCI-e 1x card; Fully compliant w/ PCI Express Base Spec, Revision 1.0a/1.1; Supports Windows (incl. XP and up) and Linux; For low profile desktop/servers
Your price
$6,072.59 MXN
VAT included in the price

Add eight RS-232 DB9 serial ports to your desktop computer, through two PCIe expansion card slots. This PCI express serial card, with two breakout cables, provides you with multiple ports to connect a wide variety of serial peripherals, at speeds of up to 921.4Kbps.

Connect your Peripherals with 8 Serial Ports

The PCI express serial port card makes it easy to add serial ports to connect your peripherals including printers, scanners, credit/debit card readers, PIN pads and modems, industrial controls and more. The 8 port PCIe serial card includes 2 breakout cables - each with 4 DB9 connectors.

Versatile Use

The low profile PCIe serial card is the ideal choice for adding serial ports, even when space is at a premium. The DB9 serial card is designed to fit into small form factor and standard computer cases. The card comes pre-configured with a low-profile bracket, and includes two optional full-profile brackets, so installation is easy regardless of the case form factor.

Maximum Compatibility

With broad OS support, including for Windows and Linux, this PCI Express card is easy to integrate into mixed environments.

PEX8S1050LP is backed by a StarTech.com lifetime warranty and free lifetime technical support.


  • Manufacturing (CNC machinery, process control equipment, bar code scanners, serial printers)
  • POS (credit/debit card readers, receipt printers, bar code scanners, cash registers, scales)
  • Consumer (modems, PDAs, digital cameras, printers)
  • Security (UPS control, access key panels, video cameras, card readers, modems)
  • Casino (video lottery terminals, slot machines)
  • Environmental Control (lighting, temperature, clocks)
  • Healthcare (patient monitoring equipment, nurses' stations, modems)
  • Hotel Front Desk (serial printers, bar code scanners, keyboard, mouse, receipt printer, credit/debit card reader)
  • Hospitality/Restaurant (credit card/debit card reader, serial printers)
  • ISDN Networking

Partner Numbers

  • Ingram Mexico A8402OH
  • UPC 065030886574


  • Windows 8 logo
  • Windows 7 logo
  • Windows Server 2012 logo
  • Linux logo
  • Windows 10 logo
  • Windows 11 logo
  • Windows Server 2016 logo
  • Windows Server 2019 logo
Windows® CE 5.0, 98SE, 2000, XP, Vista, 7, 8, 8.1, 10, 11
Windows Server® 2003, 2008 R2, 2012, 2016, 2019
Linux 2.4.x to 4.11.x LTS Versions only


Warranty Information Warranty Lifetime
Connector(s) 1 - Connector Type(s) PCI Express x1
1 - Internal Ports SP4 (4 pin, Small Drive Power)
8 - External Ports DB-9 (9 pin, D-Sub)
Environmental Operating Temperature 0°C to 55°C (32°F to 131°F)
Storage Temperature -20°C to 85°C (-4°F to 185°F)
Humidity 5~95% RH
Hardware Ports 8
Interface Serial
Bus Type PCI Express
Card Type Low Profile (SP bracket incl.)
Port Style Dongle (Included)
Chipset ID ASMEDIA - ASM1083
Packaging Information Package Height 2.8 in [70.0 mm]
Package Length 11.4 in [290.0 mm]
Shipping (Package) Weight 26.5 oz [750.0 g]
Package Width 7.5 in [190.0 mm]
Performance Serial Protocol RS-232
Max Baud Rate 921.6 Kbps
Data Bits 5, 6, 7, 8
FIFO 256 Bytes
Flow Control RTS/CTS, XON/XOFF
Parity None, Even, Odd, 1, 0
Stop Bits 1, 1.5, 2
Physical Characteristics Color Yellow
Product Height 2.4 in [6 cm]
Product Length 5.7 in [14.5 cm]
Weight of Product 4.1 oz [116 g]
Product Width 0.9 in [2.2 cm]
Material Steel
Cable Length 11.8 in [30 cm]
Software OS Compatibility Windows® CE 5.0, 98SE, 2000, XP, Vista, 7, 8, 8.1, 10, 11
Windows Server® 2003, 2008 R2, 2012, 2016, 2019
Linux 2.4.x to 4.11.x LTS Versions only
What's in the Box 1 - Included in Package PCIe Serial Card
Quick-Start Guide
2 - Included in Package 1 ft [30 cm] DB44 to 4-Port DB9 Break-out Cables
Low Profile Brackets (Installed)
Full Profile Brackets
8 - Included in Package Optional DB9 Connector Hex Nut Pairs


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Product Support

Talk to an Advisor

We are always ready to assist you with any questions you may have.

Live Chat (opens in new window)

Frequently Asked Questions


Older applications that use serial communication often use legacy hardware addresses that do not work with PCI, PCIe, or USB to Serial products. We recommend contacting the software provider/support team to check if this is the case.

Compliance and safety

Compliance letters

Safety Measures

  • If product has an exposed circuit board, do not touch the product under power.
  • If Class 1 Laser Product. Laser radiation is present when the system is open.
  • Wiring terminations should not be made with the product and/or electric lines under power.
  • Product installation and/or mounting should be completed by a certified professional as per the local safety and building code guidelines.
  • Cables (including power and charging cables) should be placed and routed to avoid creating electric, tripping or safety hazards.
*Product appearance and specifications are subject to change without notice.

Customer Reviews

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(1 Stars)

Linux drivers don't work with Centos7

By: slash02 - 02/25/2020
Doesn't work on centos7 linux install instructions are bogus.
| Helpful?
Matt, Customer Support on 2/25/2020 4:31:13 PM
We apologize for the difficulties you're experiencing when trying to install our PEX8S1050LP. This card is compatible with computers running LTS versions of Linux 2.4.x to 4.11.x and we'd be happy to help you install it on CentOS7. If you require assistance our Technical Advisors are available 24 hours a day, 5 days a week and you can reach us at www.startech.com/support.
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