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Item#: N82E16815158086

StarTech 8 Port PCI Express Low Profile 16C950 Serial Card Model PEX8S950LP

  • PCI Express to Serial Port Card
  • 921.6 Kbps Data Transfer Rate

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews
  • newegg Add Serial Ports to PC Featuring two high performance 16C950 UART channels, the StarTech PEX8S950LP card adds 8 RS232 Serial Ports to your PCI Express equipped computer for easy connection to various peripherals.
  • newegg Low/Full Profile Brackets Included This card is pre-configured with low profile brackets and ships complete with 2 standard profile brackets for compatibility with almost any computer case.

Learn more about the STARTECH PEX8S950LP




PCI Express to Serial Port Card
External USB Ports
PCI Express
External Ports
8 x Serial Ports
Data Transfer Rate
921.6 Kbps
Operating Systems Supported
Windows 2000/2003 Server and 2003 Server 64- bit/XP and XP 64-bit/Vista and Vista 64-bit ; Linux


Compliant with PCI Express specification, revision 1.0a
High Performance 16C950 UART with maximum data transfer rate up to 921kbps
Provides you with two mounting brackets for low profile and standard cases
Two high performance 16C950 UART channels

Dimensions & Weight



Package Contents
PCI Express Low Profile 16C950 Serial Card
2 x DB44 to DB9 (4 port on each cable)
Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year
  • Read full details

Customer Reviews of the STARTECH PEX8S950LP

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  • Timothy B.
  • 4/15/2012 3:20:57 PM
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsThis card is a Cadillac...

Pros: I was very impressed with this card. High quality and plenty of configuration options. Ability to choose which individual ports you would like the Ring Indicator (pin 9) powered on or off, in case you need to use pin 9 to power your device / interface. Comes with low-profile brackets and regular-size brackets.

Cons: Both dongles are labeled Port 1 - Port 4, although the "marking" is hard to read at first glance because it is molded into the dongle. Strangely enough, the markings have *nothing* to do with how the ports are detected by the operating system (Windows 7 x64, anyways). Each port can be changed to any COM port number. I found this out the hard way when I just plugged the card in and expected the ports to be detected as they were labeled, and then tried to plug things into the ports I *thought* they should be, and things weren't working. I ended up using a COM port loopback adapter (*strongly* recommended to have one on hand for installation) and a terminal emulator to figure out which physical cable port connected to which "assigned" port in the operating system, and then re-assigned the COM ports in the operating system as necessary. I ended up putting large labels around the physical ports in order to read them better (and tell 5-8 apart from 1-4, considering the molded labels).

Other Thoughts: Windows 7 x64 compatible. The instructions mention moving jumpers around on the card to determine which large port is which, but after the above experience with the COM port numbering, I can't see why anyone would need to bother, unless other operating systems handle the COM port numbering differently. After all of the configuration was said and done, the card is working beautifully. Magnificent.

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Item#: N82E16815158086
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