4 Port PCI RS232 Serial Adapter Card with 16550 UART

Add 4 high-speed RS-232 serial ports to your PC through a PCI expansion slot

Product ID: PCI4S550N

0 stars (0 reviews) |
  • Supports the RS-232 serial interface
  • Includes drivers for Linux® and all versions of Windows®
  • IRQ sharing saves resources and eliminates conflicts
Your price
€64.99 EUR excl. VAT
€77.99 EUR incl. VAT

The PCI4S550N 4-port PCI Serial card turns an available PCI slot into four RS232 serial ports - a cost-effective solution for connecting any new or old serial peripheral, with support for data transfer rates of up to 115Kbps.

The PCI Serial card is a perfect solution for connecting serial modems, POS devices, PDAs, digital cameras, printers, ISDN terminal adapters and more, to your system without having to upgrade your peripheral devices for compatibility with newer standards (e.g. USB).

Saving time and hassle, the Serial PCI card is plug-and-play ready, and can be installed in minutes, supporting Windows® 7, Server 2008 R2, Vista, XP, ME, 2000, 98, 95, NT4, 3.1, DOS® and Linux® operating systems. Plus, the serial card offers IRQ sharing to help ensure stability and consistent performance, guaranteeing convenient, hassle-free connections.

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

Applications

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

The StarTech.com Advantage

  • Guaranteed compatibility with any PC running Windows®, DOS® or Linux® for simple integration into your application
  • Data transfer rates of up to 115.2 Kbps for efficient serial device performance
  • Easy to install and use with full step-by-step instruction providing a hassle free serial solution

Partner Numbers

  • Tech Data - France 4462102
  • Ingram Micro France V930227
  • UPC 065030795531

Compatibility

  • Windows 8 logo
  • Linux logo
  • Windows Server 2012 logo
  • Windows 10 logo
  • Windows Server 2016 logo
  • Windows Server 2019 logo
Windows® DOS, 95, 98SE, 2000, CE 5.0/6.0, XP Embedded, POS Ready 2009, Embedded System 2009, XP, Vista, 7, 8, 8.1, 10
Windows Server® 2003, 2008 R2, 2012, 2016, 2019
Linux 3.5.x to 4.4.x LTS Versions only

Specifications

Warranty Information Warranty Lifetime
Connector(s) Connector Type(s) 1 - PCI / PCI-X (Universal 3.3 & 5V, 32-bit)
External Ports 4 - DB-9 (9 pin, D-Sub)
Environmental Operating Temperature 0°C to 70°C (32°F to 158°F)
Storage Temperature -40°C to 85°C (-40°F to 185°F)
Humidity 5~85% RH
Hardware Ports 4
Interface Serial
Bus Type PCI / PCI-X (5 / 3.3V)
Card Type Standard Profile
Port Style Integrated on Card
Industry Standards PCI 2.1
Chipset ID ASIX - MCS9845CV
Packaging Information Package Height 31 mm [1.2 in]
Package Length 14.3 cm [5.6 in]
Shipping (Package) Weight 0.2 kg [0.4 lb]
Package Width 17.3 cm [6.8 in]
Performance Serial Protocol RS-232
Max Baud Rate 115.2 Kbps
FIFO 32 Bytes
Physical Characteristics Weight of Product 74 g [2.6 oz]
Product Length 12 cm [4.7 in]
Product Width 20 mm [0.8 in]
Product Height 12 cm [4.7 in]
Software OS Compatibility Windows® DOS, 95, 98SE, 2000, CE 5.0/6.0, XP Embedded, POS Ready 2009, Embedded System 2009, XP, Vista, 7, 8, 8.1, 10
Windows Server® 2003, 2008 R2, 2012, 2016, 2019
Linux 3.5.x to 4.4.x LTS Versions only
What's in the Box Included in Package 1 - 2 Port PCI 16550 Serial Card
1 - Bracket with 2 DB9 Ports
1 - Driver CD
1 - User Manual

Accessories

AT925FM

DB9 to DB25 Serial Cable Adapter - F/M

Convert a DB9 male port to a DB25 male port

Your price
€2.99 EUR excl. VAT
€3.59 EUR incl. VAT
SCNM925FM

10 ft Cross Wired DB9 to DB25 Serial Null Modem Cable - F/M

Connect your serial devices, and transfer your files

Your price
€4.99 EUR excl. VAT
€5.99 EUR incl. VAT
SCNM9FM

10 ft DB9 RS232 Serial Null Modem Cable F/M

Transfer files via serial connection

Your price
€4.99 EUR excl. VAT
€5.99 EUR incl. VAT
AT925FF

DB9 to DB25 Serial Cable Adapter - F/F

Convert a DB9 male port to a DB25 female port

Your price
€2.99 EUR excl. VAT
€3.59 EUR incl. VAT
SCNM9FF

10 ft DB9 RS232 Serial Null Modem Cable F/F

Transfer files via serial connection

Your price
€5.99 EUR excl. VAT
€7.19 EUR incl. VAT
Your price
€9.99 EUR excl. VAT
€11.99 EUR incl. VAT

Drivers/Downloads

Talk to an Advisor

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

Live Chat (opens in new window)

Driver(s):

Manual(s):

Datasheet

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

Troubleshooting

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.

When you troubleshoot issues with a serial device, there are some quick tests that you can complete to rule out potential problems. You can test to make sure that the following components are working correctly and are not the source of the issue:

  • Serial cables

  • Serial ports

  • Serial devices

To test your setup components, try the following:

  • Use the serial cable, serial port, and serial device in another setup to see if the problem is with the components or the setup.

  • Use a different serial cable, serial port, and serial device in your setup to see if the problem persists. Ideally, you should test a component that you know works in another setup.

When you test your cables, it is recommended that you do the following:

  • Test each cable individually.

  • Use short cables when you are testing.

When you test the serial ports and serial device, it is recommended that you do the following:

  • Press the Windows key + R, type devmgmt.msc, and press Enter to open Device Manager. Check to see if your device is listed under Ports (COM & LPT).

  • Make sure that the COM port number is the correct number for the serial device and that the software being used to connect the computer to the serial device uses the correct COM port number. 

  • If the device is listed with an error, follow the instructions on the website to reinstall the drivers.

Note: Some serial devices work only if the COM port number is between a certain range. For example, COM1 to COM4.

To check whether or not an RS-232 serial port is working, perform an RS-232 loopback test by doing the following:

  1. If your serial port is not female, convert it by taking a female/female cable or gender changer and plugging it into the serial port.
  2. Take a metal paperclip or wire and cross pins 2 and 3. If you look closely at the female end, the pins should be numbered.
  3. Open a telnet session on the COM port number of the device that you are testing. To find out the COM port number, refer to the following FAQ: https://www.startech.com/faq/com-port-listing-windows.

Note: To open a telnet session on the COM port, you need a telnet client like PuTTY or Hyper Terminal. Windows XP comes with Hyper Terminal.

  1. When the session is open, anything you type into it you should see. The loopback test fails when you cannot see what you are typing.

If the loopback test fails, make sure that the serial cable or gender changer that you are using works and that the adapter is in the correct port. 

You can check multiple ports at the same time by opening multiple sessions, putting the loopback adapter on one port, and trying to type into each session.  When you can see what you are typing, you know that the COM port is working and you can see which port number the physical serial port is. Close the window for the port that you just tested to speed up the testing of the remaining serial ports.

For products related to this article, click here.

How To

To confirm that Windows detects your expansion card, complete the following:

  1. Press the Windows key+R, type devmgmt.msc, and press Enter.
  2. In Device Manager, under the appropriate heading, confirm that your expansion card is listed and that there isn't an exclamation mark next to it.  For example, a USB controller card would be under Universal Serial Bus controllers.

Your expansion card is listed according to the name of the chipset. To determine the name of the chipset of your expansion card, navigate to www.StarTech.com and look on the Technical Specifications tab for your product.

Installation

Prior to installing this device, ensure that your operating system is up to date (for example, you have installed the most recent service pack).

To install the driver:

  1. Download the latest drivers from the StarTech.com website (http://www.startech.com/Support). You can find the part number and product ID on the product’s packaging.

Note: Windows will typically save the files to the Downloads folder that is associated with your user account (for example, C:\Users\your_name\Downloads).

  1. Once the download is complete, right-click the zip folder that you downloaded, select Extract All, and follow the on-screen instructions.
  2. Select the appropriate folder for your operating system.
  3. Right-click Setup.exe. 
  4. Click Run as Administrator.

Note: If the Run as Administrator option is not available, you might be attempting to run the installer from within the zipped file. Extract the files using the instructions in Step 2.

  1. Follow the on-screen prompts to install the device drivers and restart the computer when prompted.
  2. Your computer will automatically complete the driver installation and your device should be ready to use.

Prior to installing this device, ensure that your operating system is up to date (for example, you have installed the most recent service pack).

To install the driver:

  1. Download the latest drivers from the StarTech.com website (http://www.startech.com/Support). You can find the part number and product ID on the product’s packaging.

Note: Windows will typically save the files to the Downloads folder that is associated with your user account (for example, C:\Documents and Settings\your_name\My Documents\Downloads).

  1. Once the download is complete, right-click the zip folder that you downloaded, select Extract All, and follow the on-screen instructions.
  2. Select the appropriate folder for your operating system.
  3. Double-click Setup.exe.
  4. Follow the on-screen prompts to install the device drivers and restart the computer when prompted.
  5. Your computer will automatically complete the driver installation and your device should be ready to use.

Before you install the device, make sure that your operating system is current (for example, the most recent service pack is installed).

  1. Download the latest drivers from the StarTech.com website at http://www.startech.com/Support. The part number and product ID are on the product packaging.

Note: Windows usually saves the files to the Downloads folder that is associated with your user account (for example, C:\Users\your_name\Downloads).

  1. After the download is complete, right-click the zip folder that you downloaded, click Extract All, and complete the instructions.
  2. Press the Windows key + R, type devmgmt.msc, and press Enter to open the Device Manager.
  3. Right-click PCI Serial Port, which will have a “!” or “?” next to it to indicate a driver issue.
  4. Click Update Driver.
  5. Click Browse my computer for driver software.
  6. Select the Let me pick from a list of device drivers on my computer option.
  7. On the Select your device’s type from the list below screen, click Show All Devices, and click Next.

Note: The Select your device’s type from the list below screen does not appear on all systems. If you do not see this screen, skip this step.

  1. Select the Have Disk option.
  2. Browse to the Drivers folder and open the 32-bit or the 64-bit folder, depending on your system type.

Note: To view your system type, press Windows key + R, type control /name microsoft.system, and press Enter.

  1. Click the StnMF file or the NmXpMf file (only one of the file names is displayed). Click OK, and then click Next.
  2. The COM ports are listed in Device Manager under Ports (COM & LPT). Repeat steps 4 to 11 for each of the COM ports, selecting the StnPorts file or the NmPorts file in step 11.

Before you install the device, make sure that your operating system is current (for example, the most recent service pack is installed).

  1. Download the latest drivers from the StarTech.com website at http://www.startech.com/Support. The part number and product ID are on the product packaging.

Note: Windows usually saves the files to the Downloads folder that is associated with your user account (for example, C:\Documents and Settings\your_name\My Documents\Downloads).

  1. After the download is complete, right-click the zip folder that you downloaded, click Extract All, and complete the instructions.
  2. Press the Windows key + R, type devmgmt.msc, and press Enter to open the Device Manager.
  3. Right-click PCI Serial Port, which will have “!” or “?” next to it to indicate a driver issue.
  4. Click Update Driver.
  5. On the Hardware Update Wizard screen, click Install from a list or specific location (Advanced), and then click Next.
  6. Select the Don’t search, I will choose the driver to install option, and then click Next.
  7. On the Hardware Type screen, click Show All Devices, and then click Next.

Note: The Hardware Type screen does not appear on all systems. If you do not see this screen, skip this step.

  1. On the Select the Device Driver you want to install for this hardware screen, select the Have Disk option.
  2. In the Install from Disk dialog box, click Browse.
  3. Browse to the Drivers folder and open the 32-bit or the 64-bit folder, depending on your system type.

Note: To view your system type, press Windows key + R, type control /name microsoft.system, and press Enter.

  1. Click the StnMF file or the NmXpMf file (only one of the file names is displayed). Click OK, and then click Next.
  2. The COM ports are listed in Device Manager under Ports (COM & LPT). Repeat steps 4 to 11 for each of the COM ports, selecting the StnPorts file or the NmPorts file in step 11.

Before You Buy

Yes. This PCI card uses a universal connector keyed for both 3.3V and 5V that can be used with PCI and PCI-X. This type of connector is identified as having 2 separate notches, instead of just one.

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

(0 reviews)
0 out of 5 stars
  • 5 (0)
  • 4 (0)
  • 3 (0)
  • 2 (0)
  • 1 (0)
Tell us what you think of this product.
Need a little help getting started?

Check out our review guidelines.

Feedback Back to top