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Item#: N82E16815158033

StarTech Low Profile 2 Port 16550 Serial PCI Card Model PCI2S550_LP

  • PCI to Serial Port Card
  • 115 Kbits/Sec Data Transfer Rate
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
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This 2 Port 16550 Serial Card can be installed in a PCI slot to add two serial ports - a cost-effective solution for connecting any new serial device or old legacy serial device, with data transfer rates of up to 115.2 Kbps. The serial card features a low profile bracket, suitable for installation in low profile/small form factor computer cases.

Perfect for connecting serial modems, POS devices, PDAs, digital cameras, printers, ISDN terminal adapters and more, to your system, the adapter card supports IRQ sharing and operates flawlessly with Windows XP, Server 2003, 2000, ME, 98, 95, NT4, 3.1, DOS and Linux. The card can be connected in minutes through simple plug and play installation.

  • newegg Two Serial Port The StarTech PCI2S550_LP features two external 9-pin RS-232 serial ports to add serial connection capability directly to your computer for connections with various serial devices such as scales, touchscreens, magnetic card readers, bar code scanners, receipt printers and label printers in POS retail applications, bank teller workstations or ATMs.
  • newegg PCI Interface The StarTech PCI2S550_LP features a PCI interface compliant with Plug-n-Play. Simply install the card into your PC's free PCI slot without powering down the system!

Learn more about the STARTECH PCI2S550_LP




PCI to Serial Port Card
External Ports
2 - DB 9-pin Serial Male Ports
Data Transfer Rate
115 Kbits/Sec
Operating Systems Supported
Windows 3.x/NT4/95/98/ME/2000/XP/Server 2003, DOS and Linux

Physical Spec

2.2" x 4.8" x 0.8"
0.31 lbs. (Package)


16 byte FIFO buffer ensures fast data transfer while multitasking
Supports the RS-232 serial interface

Quick Info


  • Limited Warranty period (parts): 0 day
  • Limited Warranty period (labor): 1 year

Customer Reviews of the STARTECH PCI2S550_LP

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  • Darren M.
  • 6/5/2009 10:16:00 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year

5 out of 5 eggsLow profile serial card that works

Pros: It adds two serial ports to your sff computer. Didn't have to install any drivers in XP.

Cons: It doesn't add 20 serial ports to your computer.

Other Thoughts: The guy that commented that it "only comes with the extremely small metal plate to cover the back of the computer" did not read that it's a *low profile* card. That means it has a short plate to fit into small computers.

0 out of 1 people found this review helpful. Did you? Yes No

  • Anonymous
  • 1/26/2009 2:34:38 PM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

3 out of 5 eggsEverything works great!

Pros: Works great! I currently use DOSBox to run some old engraving machines on Vista Home Premium. I was able to set the port and ditch the old 286 it used to run on.

Cons: It fits into the normal PCI slot but only comes with the extremely small metal plate to cover the back of the computer. Still haven't figured out what I'm going to do to securely close it, just have it carefully pluged in and hope it doesn't wobble loose while engraving.

Other Thoughts: I kept this thing because I tried a different PCI Serial card and Vista would not recognize it, couldn't find a driver to make it work but this one does! Oh, and Newegg is awesome!

0 out of 1 people found this review helpful. Did you? Yes No

  • Shawn W.
  • 1/29/2008 1:07:24 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsAs advertised

Pros: Works as advertised

Cons: None

Other Thoughts: In a world that doesn't use serial ports any more, this works. Nothing special, just works.

1 out of 3 people found this review helpful. Did you? Yes No

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Computer Hardware > 
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Add-On Cards > 
Item#: N82E16815158033
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