|Item model number||PL2303-DB9|
|Item Weight||1.44 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|
Plugable USB to RS-232 DB9 Serial Adapter (Prolific PL2303HX Rev D Chipset)
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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 (10/8.1/8/7/Vista/XP), Mac, Linux, and other platforms
- Programmable baud rate from 75 bits per second to 128,000 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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Allows Any PC to Connect with Legacy RS-232 Serial Devices
Features a Prolific PL-2303HX Rev D chipset for the best combination of performance and wide driver support. Drivers available for Windows 10, 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 RT).
Works with devices with RS-232 serial ports such as other PCs with RS-232 ports, Bluetooth serial adapters, telescopes, amateur radio gear, GPS receivers, routers, firewalls, modems, plotters, embedded character displays, scan tools, sonar units, embedded boards and many others. 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) or a standard serial cable will be needed.
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.
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Seller Warranty DescriptionWe 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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Works perfectly with Your Cable Store 6 Foot DB9 Female / DB25 Male Serial Port Cable RS232 to extend the length to about 8 feet and connect to female DB25.
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. Again, the Windows Update installation routine failed, but (let's call this "Plan D") I selected an option for Windows to Search the Internet... and that was all it took. The search routine ran for about 2 minutes and then the installation process automatically kicked off, resulting in a pop-up window stating that installation was successful. A quick look at Device Manager showed that the cable had now been assigned to COM7.
Go figure. Ummm... I highly recommend you try "Plan D" as your first avenue of trouble-shooting.
One issue remains though; this install and COM 7 assignment is not permanent on my machine. When I unplug the cable from the USB port, it disappears from Device Manager and I have to go back through "Plan D" all over again. Now that I know this it is a minor inconvenience.
In the end the cable worked, but it took a bit to get there.
UPDATE March 2017. Adapter still works perfectly as always. I actually left it with a customer Sunday after setting up some new Cisco Switches since they had mentioned needing one. I came here without hesitation and ordered myself another!
Read up on it a bit, and found that it's a widespread problem which this model does NOT suffer from. Purchased it and now my painfully-slow Windoze 7 box (which was lightening quick running XPSP3 and Tails Linux) does not only not BSOD after 1-7 minutes of use with a USB to serial adapter, it doesn't BSOD while using it (meaning using the new PL2303HX chipset adapter) AT ALL even after 3 days of uptime to stress-test.
Shoddy software & drivers cause problems. This hardware does not suffer from the issues introduced with Windoze 7 and my old Prolific chipset. This is my new model of choice, and I recommend it to anyone finding that Redmond's latest polished fecal lump has obsoleted otherwise functional hardware.
The most excellent thing about this adapter is that it is universal - it works on every OS I've tried, Linux, Windows, and Mac OS X. At most some drivers may be needed, but once they're installed the adapter just works.
Pro tip for those of you that use PuTTY as your terminal program. Flow Control is set to 'XON/XOFF' by default. If you are trying to connect to a Cisco device, this needs to be set to 'off'. I hope that I save someone the same amount of time I wasted figuring that one out.
The COM port does seem to change every now and then, but I'm certain that's Windows, not this device. There's probably a way to fix it, but that's not for this review.