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StarTech.com PEX8S952 8 Port Native PCI Express RS232 Serial Adapter Card with 16950 UART

4.6 out of 5 stars 117 customer reviews
| 13 answered questions
List Price: $213.99
Price: $155.99 & FREE Shipping. Details
You Save: $58.00 (27%)
Only 5 left in stock (more on the way).
Want it Tuesday, April 19? Order within and choose One-Day Shipping at checkout. Details
Ships from and sold by Amazon.com. Gift-wrap available.
8 Port
PCI Express
  • Enter your model number above to make sure this fits.
  • High Performance Dual Channel Oxford 950 UART provides reliability, speed and broad OS compatibility
  • Native single-Chip, single lane PCI Express design reduces overall load on the CPU
  • The included breakout cable helps to reduce cluttered connections
  • 8 high speed RS-232 serial ports with data transfer rate up to 460.8 Kbps
  • Breakout dongle cable included
  • 128-byte deep FIFO per transmitter and receiver
  • Automated in-band software flow control using programmable Xon/Xoff in both directions
  • Automated out-of-band hardware flow control using Tx/Rx/RTS/CTS/DSR/DTR/DCD/RI/GND
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$155.99 & FREE Shipping. Details Only 5 left in stock (more on the way). Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

  • StarTech.com PEX8S952 8 Port Native PCI Express RS232 Serial Adapter Card with 16950 UART
  • +
  • Intel Gigabit CT PCI-E Network Adapter EXPI9301CTBLK
Total price: $183.98
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Product Information

Size:8 Port  |  Style:PCI Express

Technical Details

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Other Technical Details
Brand Name StarTech
Item model number PEX8S952
Item Weight 1.4 pounds
Product Dimensions 8.7 x 2.1 x 5.9 inches
Item Dimensions L x W x H 8.7 x 2.13 x 5.91 inches

Additional Information

ASIN B001VSR9TK
Customer Reviews
4.6 out of 5 stars 117 customer reviews

4.6 out of 5 stars
Best Sellers Rank #52 in Electronics > Computers & Accessories > Computer Components > I/O Port Cards > Serial Port Cards
Shipping Weight 1.5 pounds (View shipping rates and policies)
Date First Available April 8, 2009

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Customer Reviews

Top Customer Reviews

5.0 out of 5 starsThis worked great on our new Lenova Computer
By L. Rapoport on February 20, 2013
Style Name: PCI ExpressSize: 2 Port Verified Purchase
My wife needed a new computer but also need to connect an old travel agency ticket printer to the computer. Unfortunately new computers no longer have a serial port so we thought we were out of luck. We discovered that we could get a card to add this function so we ordered one from Amazon. Unfortunately the first StarTech would not show on her new computer. I thought it was a bad card, so back it went to Amazon. I ordered a new one and the same issue. I finally got a nice tech support guy on the phone at StarTech, yes they are here in the United States and you really get to speak to a live person.

He told me that some of the new computers have issues with the cards and I needed the one with the Oxford chipset in it. They look identical, so unless you get the proper product number from StarTech you may have a problem. We finally got the correct one with the Oxford chipset, installed it, it now showed up on my wife's computer and we were good to go. The printer works fine and all is well in the world.

I would suggest that if you order this one since this is the chipset that seems to work with most new computers.
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5.0 out of 5 starsFlawless!
By J33P3R on April 18, 2012
Style Name: USB 2.0Size: 1 Port Verified Purchase
Absolutely flawless! This is the third USB to RS232 Converter I've purchased and this one actually works! Unlike the others. I had to buy this to use with a stepper motor controller and none of the others, which were Prolific PL2303 chipsets, worked. This one is fully customizable and works perfectly with my controller. Not to mention it seems that the PL2303 are not compatible with either win7 or 64-bit systems, not sure which but grab yourself the FTDI chipset and it'll work just fine. Great product, I highly recommend if you need it. Comes with all software and easy installation.
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5.0 out of 5 starsWorking com port with old DOS/XP Applications
By winstoncubed on January 15, 2014
Style Name: PCI ExpressSize: 2 Port Verified Purchase
I purchased this for use in a Windows 7 Host with VMWare running Windows XP for some old dos applications. The com ports were setup to pass through from the host to the virtual machine. It works perfectly. This is a solid product.
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4.0 out of 5 starsIt Does the Job
By Curmudgeon In Training on February 5, 2012
Style Name: USB 2.0Size: 1 Port Verified Purchase
I use it to connect a go-to telescope mount to a laptop. This allows me to use a planetarium program to select tagets and point the scope and to use a software version of the scope's hand controller. These adaptors can be problematical. Those by Prolific have been copied and cheapened for example.

This adapter, with a good FTDi chipset works reliably for hours. I recommend this or the Keyspan adapter.
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5.0 out of 5 starsQuality product that works on everything I plugged it into.
By Kyle B. Kennedy on August 12, 2015
Style Name: USB 2.0Size: 1 Port Verified Purchase
Awesome product. I specifically bought this because of some of the extra features this has over others, like remembering COM ports. I installed this onto multiple laptops, configured them all for the same COM ports, and it always picks right back up where it left off on any of them. It's immediately recognized every time. Works great on ASA/Catalyst, Powerconnect, Procurve, and other firewalls/routers/switches. Also had no issues with Windows 7, 8.1, 10, Server 2012 R2, etc. Well worth the money.
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1.0 out of 5 starsI can't get it to work with windows 8.1 or 10.
By Ken325 on August 8, 2015
Style Name: USB 2.0Size: 1 Port Verified Purchase
I can't get it to work with windows 8.1 or 10. No real help online. Lots of drivers for win 7, XP even 2000. Nothing for new systems. Frustrated. I get this in device manager.
Windows has stopped this device because it has reported problems. (Code 43)

The SuperSpeed link to the USB device keeps going to an error state Compliance. If the device is removable, remove the device and then disable/enable from device manager to recover.
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2.0 out of 5 starsI never could get my computer to recognize the card ...
By Mike S. on February 22, 2016
Style Name: PCI ExpressSize: 1 Port Verified Purchase
I never could get my computer to recognize the card and admit I am not a tech person. I gave up and used the Tera Grand - Premium High Speed USB 2.0 to Serial RS-232 DB-9 Converter - Supports Windows 10, 8, 7, Vista, XP, 2000, 98, Linux and Mac - with FTDI Chipset. It worked without any issues.
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5.0 out of 5 starsFlawless
By SP3204 VINE VOICE on March 1, 2014
Style Name: PCI ExpressSize: 2 Port Verified Purchase
I use serial ports to control several ham radios. I switched computers from an ancient (OK, 2002) XP desktop that had a 4-port serial card to a new system running Windows 7. I was concerned about switching the OS and computer at the same time - I hoped everything would work. It did! The installation was problem-free and the serial card works great with both radios along with the software I use (which also upleveled). I was able to use the dual connector configuration, but it's nice that StarTech includes the lower profile brackets too.

No complaints, it works very well and I plan on picking up a 2nd card to add in some more radios.
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Most Recent Customer Reviews

5.0 out of 5 starsFive Stars

Great

Published 1 month ago by Amazon Customer
5.0 out of 5 starsFive Stars

Easy to install and works great.

Published 1 month ago by Nate H
5.0 out of 5 starsWorks great and I love having the dual ports with low ...

Needed a couple of serial ports on my W8 machine at work, for control and testing AV equipment. Works great and I love having the dual ports with low profile brackets. Read more

Published 1 month ago by OC Birder Trish
5.0 out of 5 starsFive Stars

I needed this and it works!

Published 2 months ago by Micktarheel
5.0 out of 5 starsNeeded a D 9 pin serial connector

I needed a 9 pin (RS232)serial connector, I installed this card. Installed the drivers no problems. Checked what com port it was on. Putty loves it.

Published 2 months ago by Thomas Whetsell
5.0 out of 5 starsFive Stars

Buy these all the time for our IT staff

Published 3 months ago by Amazon Customer
5.0 out of 5 starsWorks like a champ!

This serial adapter uses a bridge made by FTDI. The driver works great with Macs (get the latest driver from the FTDI support site). Read more

Published 3 months ago by bungfish
5.0 out of 5 starsGreat USB to Serial Adapter

Works as indicated. Great price point. Super way to convert USB to DB9 serial. Love the hard set capability for com port dedication. Read more

Published 3 months ago by atlasiii
5.0 out of 5 starsVery good, works with no glitches.

It works perfectly with my Yaesu FT-450D. I tried other cables and had issues, this one works perfectly, although you will need an adapter to fit ir to the rear of the radio.

Published 3 months ago by Santos Dumont
5.0 out of 5 starsFast shipping and it works perfect with Windows Server 2008r2 for our...

Fast shipping and it works perfect with Windows Server 2008r2 for our enrollment reader. Com port remains static once set so no having to change the settings on every restart.

Published 4 months ago by James McMillan

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