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

4.6 out of 5 stars 829 customer reviews
| 92 answered questions

Price: $14.95 & FREE Shipping on orders over $49. Details
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Sold by Plugable Technologies and Fulfilled by Amazon. Gift-wrap available.
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  • 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 (10/8.1/8/7XP), Mac, Linux, and other platforms
  • Programmable baud rate from 75 bits per second to 128000 bits per second. Plug and play creation of a COM port. Powered by USB - no external power needed
  • We love our Plugable products and hope you will too. All of our products are backed with a 1-year limited parts and labor warranty and Seattle-based email support.
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$14.95 & FREE Shipping on orders over $49. Details In Stock. Sold by Plugable Technologies and Fulfilled by Amazon. Gift-wrap available.

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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 Windows10, Windows 8.1, 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 - 10 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.

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 - 10. Because we only use genuine Prolific chips, our adapter is always compatible with the latest drivers from Prolific.

Product Information

Technical Details

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Brand Name Plugable Technologies
Item model number PL2303-DB9
Item Weight 1.6 ounces
Product Dimensions 26.5 x 1.5 x 0.6 inches
Item Dimensions L x W x H 26.5 x 1.5 x 0.6 inches

Additional Information

ASIN B00425S1H8
Customer Reviews
4.6 out of 5 stars 829 customer reviews

4.6 out of 5 stars
Best Sellers Rank #2 in Computers & Accessories > Computer Accessories > Cables & Interconnects > Serial Cables
#612 in Electronics > Accessories & Supplies > Cables
Shipping Weight 4.2 ounces (View shipping rates and policies)
Date First Available September 1, 2010

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.

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Important Information

Seller Warranty Description
We love our Plugable products and hope you will too. All of our products are backed with a 1-year limited parts and labor warranty and Seattle-based email support.

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

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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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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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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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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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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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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Verified Purchase
As with others, I was attracted to this USB-to-Serial cable by the price and, with a few extra steps involved to get it up and running, it does the job.

The task at hand was to connect an older model DiabloSport Predator U7140 (Mustang GT) performance tuner's serial port to my W7 64-bit Compaq laptop's USB port, in order to update the software on the tuner. Have had this tuner for several years, and this is the first software update that has been attempted.

Following the provided directions which state that the Plugable cable's drivers are available through the Windows Update plug-n-play installation process, I connected it to an open USB port. Indeed, Windows did acknowledge that a new device had been connected, and the driver installation screen popped open... but installation failed. My laptop's Device Manager continued to show the cable under "Other Devices", either as "no driver installed" or as 'there is a problem with the device (Code 1)'.

After several attempts and reboots, I moved on to "Plan B" - using the CD supplied with the cable. Unfortunately, the laptop's CD drive would not read the CD, and I am still not sure why.

OK... on to "Plan C": I went to Plugable's website support page for this cable & driver (plugable.com/drivers/prolific), downloaded the installation and text-based Help files, and tried the install that way... even tried installing as Administrator but, after several install & reboot sessions, it still would not work. Was frustrated and fully uninstalled the program through the Control Panel, Programs' routine (then rebooted).

So far we are at a one star review, right?

Finally -- before giving up I tried just plugging the cable into the USB port one last time.
Read more ›
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