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  • Plugable USB to RS-232 DB9 Serial Adapter (Prolific PL2303HX Rev D Chipset)
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Plugable USB to RS-232 DB9 Serial Adapter (Prolific PL2303HX Rev D Chipset)

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List Price: $19.99
Price: $14.95 & FREE Shipping on orders over $35. Details
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Sold by Plugable Technologies and Fulfilled by Amazon. Gift-wrap available.
  • Allows any PC to connect serial devices and programs that communicate through COM ports
  • 24-inch cable with standard USB Type A Male to standard 9-pin DB9 RS-232 serial connector
  • PL-2303 Chipset for widest possible compatibility with Windows, Mac, Linux, and other platforms
  • Programmable baud rate from 75bps to 12Mbps. Typical speeds up to 230Kbps
  • Plug and play creation of a COM port. Powered by USB - no external power needed
4 new from $12.00 2 used from $13.90

Frequently Bought Together

Plugable USB to RS-232 DB9 Serial Adapter (Prolific PL2303HX Rev D Chipset) + TRENDnet USB 2.0 to RS-232 DB9 Serial Converter, TU-S9 + Cisco Console Cable RJ45-to-DB9
Price for all three: $26.20

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Product Details

  • Product Dimensions: 26.5 x 1.5 x 0.6 inches ; 1.4 ounces
  • Shipping Weight: 4.5 ounces (View shipping rates and policies)
  • ASIN: B00425S1H8
  • Item model number: PL2303-DB9
  • Average Customer Review: 4.6 out of 5 stars  See all reviews (523 customer reviews)
  • Amazon Best Sellers Rank:
  • Date first available at Amazon.com: September 1, 2010
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Product Description

Features a Prolific PL-2303HX Rev D chipset for the best combination of performance and wide driver support. Drivers available for Windows 98/ME/2000/XP, and Microsoft signed drivers for 32/64-bit Windows 8, Windows 7, and Vista; Mac OS X 10.6 and later; open source drivers included in Linux kernel 2.4.31 and later. Windows 7 automatically detects and guides driver install without disk. Not compatible with ARM-based Windows (MS Surface).

Compatibility

Works with devices with RS-232 serial ports like: other PCs with RS-232 ports, Bluetooth serial adapters, PDAs, GPS receivers, routers, firewalls, modems, printers, embedded character displays, scan tools, sonar units, embedded boards, etc. Specific devices include: Garmin eTrex GPS, Seiko Label Printer, iRobot Create, Cisco products with serial consoles, US Robotics Modems, NexStar telescopes, Equus Scan Tools, Uniden Hand Held Scanners, etc. Works with software like: HyperTerminal, TeraTerm, WinDBG, all open source serial software on Linux, etc.

In the box

USB to Serial Converter unit with standard 9 pin male DB9 connector and female screw attachment, 24-inch cable, Driver CD, and Quick Installation Guide.

Connector compatibility note

The DB9 connector has fixed female side screw in connections. For connecting to a device that also has fixed female side connectors an inexpensive DB9 Female/Female Mini Gender Changer (Coupler) will be needed.

Genuine

We use only genuine Prolific chips. There has been a problem with some USB serial adapters using clone chips not actually from Prolific. These adapters will not work with Prolific's latest drivers, thus won't have support on recent operating systems like Windows 7 64-bit and Windows 8. Because we only use genuine Prolific chips, our adapter is always compatible with the latest drivers from Prolific.

Customer Questions & Answers

Customer Reviews

Installed, plugged in, it worked.
gchiker
Plugable USB to RS-232 DB9 Serial Adapter (Prolific PL2303HX Chipset) Worked fine for me.
Tom W
The drivers work great for Windows 7 in 64-bit.
Dino

Most Helpful Customer Reviews

56 of 62 people found the following review helpful By evL on January 5, 2011
Verified Purchase
I just wanted to state that this is a perfect USB to Serial Converter for use with the Linux OS. I had been looking for a USB/SerialConv and noticed that this one, and this is key, has the Prolific PL2303HX Chipset. Which, for most newer Kernels, is plug and play. I would have liked to seen a review like this when I was checking the item out but was pretty sure on the chipset. So I thought I'd give a review in case other Linux users are wondering. Anyhow, I took it out of the box, plugged it in, and had a ttyUSB* device show up in # dmesg. I didn't use the CD at all. The CD is for winDoze users. Worked great with Novell SuSe and Debian. Price? Just right! Ok folks, have fun...
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23 of 24 people found the following review helpful By Diane W on January 9, 2011
Verified Purchase
Finally - an adapter that really works with windows 7 and 64 bit - and so reasonably priced - bought one from Staples that said it was windows 7 compatible for $40 and it didn't work - I use this to hook my laptop to my embroidery machine - so excited that its working!!
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23 of 24 people found the following review helpful By Neil D. on December 26, 2010
Verified Purchase
This is a very good Serial-USB adapter. Not much than can be said about it except that it installs easily and works flawlessly. Installing the drivers one time from the provided DVD enabled every USB port in my machine to recognize the adapter immediately. This is important to me because I own another brand of Serial-USB adapter that requires the drivers to be separately installed on each USB port to be used, which is a real bother.

I would definitely recommend this product to anyone having a need for a Serial-USB adapter.
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14 of 14 people found the following review helpful By C. J. Francis on October 26, 2011
Verified Purchase
If you are an IT professional looking for a USB-to-RS-232 Console adapter, look no further. The Prolific PL2302HX Chipset integrated into this adapter is the heart of what makes it work properly. I have tried numerous other USB adapters with different chipsets and the PL2303HX produced the most consistent and accurate serial data transfers. I ran tests using a legacy laptop running Windows XP and a standard DB9 serial port against a new Windows 7 x64 Laptop with the Plugable USB adapter and performed data captures and transfers with a Cisco router. I did encounter a few problems when performing large file transfers, but the same problems were also encountered using the legacy serial port. Unlike other USB adapters, I experienced no bit inversions, no lost connection, no console port lockups, and no baud-rate changes.

The Drivers provided by Plugable are also great. Drivers are available for Windows XP x32, Windows 7 x32, and Windows 7 x64, as well as MAC OSX. I did not have a Mac available for testing, but the drivers and adapter worked perfectly under the 3 windows environments tested. You will most likely need to change your COM Port assignment each time you reboot Windows or change to a different USB port, as windows will Dynamically assign a COM Port on a first-available basis. However, I have noticed that once I disabled the non-existent serial port in the BIOS of my machine, my COM assignment stayed the same as long as I used the same USB port. If all of this is a bit too technical for you, the provided PDF user manual offers step by step instructions with accurate screen shots for Windows Vista/7 and 2000/XP. Mac instructions are also included, but I have not verified them.
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13 of 13 people found the following review helpful By MgrOperations on August 22, 2012
Verified Purchase
I'm sure this works fine for many 9-pin serial devices, but it wouldn't work with my Altec Digitizer Tablet. A guy that works with digitizers all the time told me that Keyspan is the only brand he's found that consistently works with all 9-pin serial devices. So I ordered the Keyspan model USA-19HS from Amazon and it did indeed work perfectly right off the bat. Yes, the Keyspan adapter was a few dollars more, but it will work with devices that this one will not. If you happen to have one of those devices, it can save you hours of frustration.
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9 of 9 people found the following review helpful By Marc D. Behr on November 19, 2010
Verified Purchase
I needed a serial port to talk to the door security system at the fire department and the adapter we had before would not work on the new 64 bit Win7 system. After looking around, I found this adapter and it works fine as long as you install the latest driver ([...]) and reboot before you plug the cable in the first time.
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9 of 9 people found the following review helpful By K. Walker on February 16, 2011
Verified Purchase
I recently purchased a used handheld GPS (Garmin eTrex Legend). Great price but with the downside of requiring a serial connection. Garmin was offering a serial to USB cable for $89. Got this one instead and the unit works great! Thanks for helping keep my good deal a good deal.
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5 of 5 people found the following review helpful By Joe on July 26, 2011
Verified Purchase
I ordered this cable because I have an old Miracle Piano Teaching System with an electronic keyboard and DOS-based software. I set up DosBox (a DOS emulator) on my Mac and installed the software, but needed a serial (RS232) port, which the Mac doesn't have, to hook up the keyboard.

I bought this Plugable cable, installed the driver, and hooked it up. The software initially could not connect to the keyboard, so I sent an email message to Plugable support. The problem eventually turned out to be something rather complicated and obscure, but the Plugable tech stuck with me all the way and, after five exchanges of email, I got it working!

This is a great, modestly priced product. Probably, no tech support will be needed 99% of the time, but it's great to know that it is available if you do need help.
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