Skip to: | | - A great place to buy computers, computer parts, electronics, software, accessories, and DVDs online. With great prices, fast shipping, and top-rated customer service - once you know, you Newegg.

If you are reading this message, Please click this link to reload this page.(Do not use your browser's "Refresh" button). Please email us if you're running the latest version of your browser and you still see this message. - Computer Parts, Laptops, Electronics, HDTVs, Digital Cameras and More!

PremierTry Message.
Home > 
Computer Systems > 
Input Devices > 
Add-On Cards > 
Item#: N82E16815158253

StarTech Low Profile Native RS232 PCI Express Serial Card with 16550 UART Model PEX1S553LP

  • PCI Express to Serial Port Card
  • Up to 460 Kbps Data Transfer Rate

ICON Loading...
  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews
  • newegg Add a Serial Port to PC Based on native single chip, high performance 16550 design, the StarTech PEX1S553LP card adds one RS232 Serial Port to your PCI Express equipped computer for easy connection to various peripherals.
  • newegg Half/Full Profile Brackets Included This card is pre-configured with low profile/half-height bracket for micro/slim system, and includes a full profile bracket for versatility.

Learn more about the STARTECH PEX1S553LP




PCI Express to Serial Port Card
External USB Ports
PCI Express
External Ports
1 x Serial Port
Data Transfer Rate
Up to 460 Kbps
Operating Systems Supported
DOS, Windows 95/ 98SE/ 2000/ XP(32/64bit)/ Server 2003(32/64bit)/ Vista(32/64bit)/ 7(32/64bit)/ Server 2008 R2, Linux, and Mac OS 10.4.x and up
Windows XP Embedded/ POS Ready 2009/ Embedded System 2009 OS/ CE 5.0/ CE 6.0


One high speed RS232 serial port with data transfer rate up to 460.8 Kbps
Ships with half-height/low profile mounting bracket, includes standard bracket
Selectable power output on pin 9 for the serial port
Native single-chip, single lane PCI Express
Single chip design optimizes speed and reliability
Compliant with PCI Express base specifications revision 1.1a
Automated out-of-band flow control using CTS/RTS and DSR/DTR
Automated in-band software flow control using programmable Xon/Xoff in both directions
128-byte deep FIFO per transmitter and receiver

Dimensions & Weight

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 PEX1S553LP

Do you own this product? Write a Review

ICON Loading...

Filter Results

  • Colin B.
  • 3/7/2016 8:56:20 AM
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsFinally let me get my server and my UPS to talk!

Pros: I have a Dell PowerEdge 6800 running openSUSE Leap 42.1 and acting as a Xen server. I also have a APC UPS 2200, a huge beast of a UPS. However, the UPS's USB port is busted. I tried using the built in serial port for my server, but it is slaved to Xen as a console port. Installed this serial port card, installed the Powerchute software from APC and now the server and the UPS are getting along great! :-)
I didn't use it, but I also think it is excellent that this card can power devices that take their power over the serial cable.

Cons: None

Other Thoughts: Recommend to anyone who needs a serial port for any kind of serial port application.

Did you find this review helpful? Yes No

  • 7/28/2014 7:03:35 AM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsworks great

Pros: works just fine, used for serial signature capture device

Cons: nothing negative to say today

Other Thoughts: startech and serial port cards always work good for me, I use them in older technology serial signature capture devices.

Did you find this review helpful? Yes No

Compare Offers from All Sellers newegg

Seller Name & Rating Offer Details  
ICON Loading...

Send It As A Gift!

gift services details
Selected Items

Best Service Sellers

Are you an E-Blast Insider? Subscribe Newegg e-Blast
Shop without retyping payment details. Secure shopping made faster.
Check out with PayPal.
Home > 
Computer Systems > 
Input Devices > 
Add-On Cards > 
Item#: N82E16815158253
If the Adobe Reader does not appear when you click on a link for a PDF file, you can download Adobe Reader from the Adobe web site.