This listing is for a single FTDI USB to Serial programming cable compatible
with Motorola two-way radios that support the RKN4075 proprietary interface.
I own a HT750 and a H1250 LS+ radio so I know this cable works.
The factory programming software title that supports these radio models
is Motorola Professional Radio CPS must be purchased online directly from
Motorola On LIne (MOL) to comply with their software licensing regulations.
This CPS works on Windows 10 and many older versions of Windows.
This cable uses the FTDI genuine chipset.
Fast same day shipping on orders received before 3 pm Pacific Time
With the cable, you get my installation instructions, email address, and cell
My call sign is KJ6ZWL. This business is my passion! My cables work! I now
have more than 140 radios, costing more than $28K used just for testing my
cables with programming software. I am not your typical eBay seller, so please
take a moment and read on to understand my message to you. You get my promise
that I will do my very best to support you. I worked as a computer support
engineer for 15 years before starting this full-time business. If you are not
happy with my cables, I will give you a full refund.
The # 1 problem my customers run into is finding the right software for their
radio. I have a database of more than 5000 radios and 800 different
programming software titles. In most cases, I can share links to the software
for a customer who purchases my cable. I do not sell software.
The # 2 problem is getting the factory programming software to communicate
with the radio or scanner they have. They see that the software "runs" fine,
but they can't read the radio or scanner on Windows 10. They tend to believe
that the programming cable is defective. The real problem is that they need a
version of Windows(s) that was in production when the programming software was
My ultimate goal is to organize all of my eBay cable listings by factory
programming software titles and provide an internet link to the software for
those who need it. Also, this will enable me to communicate what I know about
the operating systems that are required to program your radio successfully
before you buy my cable. This work is a very large task that will take years.
Please excuse the mistakes I will make in the process. Let me know about any
listing errors and omissions so I can correct them for the greater good. I
have over 750 listings on eBay, so searching through my eBay store makes
finding the cable you need much easier. If you do not see your radio model in
my store and you see I sell the cable you think you need, contact me.
Please check this listing's photos for a close-up of the connector to ensure
that this cable matches the physical characteristics of your radio's port
before ordering this cable. Most radios use the microphone jack as the
programming port, but some have a separate data port for programming and PC to
internal TNC interface. It is important to know that programming cables use
fewer signal pins than a microphone, so the pinouts are typically simpler than
your microphone cable.
Being able to program your rig using a spreadsheet-style of a user interface,
albeit sometimes a bit primitive, can make your life so much easier. I know
from experience that this is true. Here is my recipe for getting you up and
running for a fair price with some more advice.
Watch out for cheap cable (you get what you pay for)
Any USB programming cable priced under $10 is junk with no support if you need
help, period! You already know this, or you wouldn't have opened this listing.
eBay sellers who sell anything in their store and know nothing about the
cables they sell.
Virtually all cables from other sellers come with no installation instructions
and no support.
The truth is you don't need a CD with Windows drivers unless you are getting
obsolete or counterfeit versions of the Prolific PL2303 chipset. Typically,
the OS will automatically install the drivers when the cable is plugged into
the computer. Moreover, your computer's OS is going to install the latest
version of the drivers, deleting the drivers that came on the CD. Finally, the
drivers for the counterfeit chips do not support 64-bit Operating Systems and
all versions of Windows 10. Here is the warning copied from Prolific's website
Please be warned that counterfeit (fake) PL-2303HX (Chip Rev A) USB to Serial
Controller ICs using Prolific's trademark logo, name, and device drivers, were
being sold in the China market. Counterfeit IC products show the same outside
chip markings but generally are of poor quality and cause Windows driver
compatibility issues (Yellow Mark Error Code 10). We issue this warning to all
our customers and consumers to avoid confusion and false purchase. Prolific
prohibits the distribution of any PL-2303 drivers (including download links)
without written permission from Prolific.
Windows 8/8.1/10 operating systems are NOT supported in PL-2303HXA and
PL-2303X EOL chip versions.
Missing OS compatibility claims altogether or disclaimers about Windows 64-bit
not being supported are another big red flag.
Seller listings with poor English grammar and a USA shipping address is
another red flag.
eBay Seller Location: US, US. Where is that exactly?
If you think you can send a cable back to China and get your money refunded,
you must be from Mars.
Here is what you should know/want:
You want to buy from someone who knows a great deal about programming
HAM radios and scanners.
Buy from someone who can help you find the right programming software
for your model radio and help ensure the software you need is compatible with
the version of the Operating System you are using.
All of my cables use genuine FTDI or Prolific chipsets, and drivers
are available for all versions of Windows, OS X, and Linux.
Listing errors do occur because sellers have to create so damn many
listings to cover the 5000+ radios in the marketplace today. If you discover
discrepancies between your radio and one of my listings, please let me know so
I can correct it.
Proprietary connectors do cost 20 to 40% more, so you will see that
reflected in the sellers' prices.
I don't send you to China if you have a problem. Yes, the cables are
assembled and tested in China. I don't make these in my garage.
Only FTDI cables support LED activity lights.
Cables using the FTDI chip AND a well-designed PCBs, have a unique
feature that makes them work, especially when TX & RX operate on the same wire.
75% of the USB serial cables that I sell are FTDI; the remaining 25%
are genuine Prolific.
All RT System software requires the purchase of their cables and
doesn't work with any other cable, including this one.
For genuine FTDI and Prolific chipsets, there are drivers available
for all versions of Windows, OS X, and Linux.
If you are not certain that this the right cable for your radio,
please contact me first with an eBay message before you click buy now. Doing
so will save us both time, money, and frustration if we figure everything out
together before you place your order.
Question & Answers
Q. How can I tell if the USB serial cable I am buying uses the Prolific or
FTDI USB to serial chipset?
A. If it doesn't say FTDI in the listing title, it will use the Prolific
chipset. True USB cables do not use USB to serial chipsets.
Q. What is the difference between FTDI and Prolific USB serial cable other
than the FTDI are more expensive?
A. The best USB serial cables are the ones with the FTDI chipset for sure.
Many people prefer FTDI because they know they work, while others want to save
money or are not aware of the differences. I have sold both cables and have
learned a lot about this question. I have found issues with 65% of the Prolific
cables on the market today. As I find issues, I stop selling the Prolific
version of that cable.
14-day return exchange policy if and only if you pay to ship both ways on the
exchange if you made a mistake. If you bought the wrong physical connector, you
pay, regardless of what listing title states.
If I send you the wrong cable or the connector is correct, and the cable does
not work, I will ship you the correct cable and a prepaid return envelope at no
I offer a 1-year warranty on the cable if and only if you don't mess with it.
I stand behind everything I sell, and I promise that I will do my best to
troubleshoot any problem you encounter. All I ask of you is that you give me a
chance to correct any issues you have before you provide your feedback.
Contact me if you don't see what you need or you have questions.
KJ6ZWL clear and standing by