It probably uses a fake Prolific chipset, all too common sadly.

Windows will not use those now, unless you roll back the driver, but then Windows will "update" it to the latest again at the next opportunity.  If you turn Windows updates off, then you are potentially vulnerable for other troubles as they are found later.

They still work OK on most Linux's though, as does Chirp just fine.

Solution, use a FTDI based cable (if you can find a seller to guarantee that they are genuine too) or build your own cable with a known genuine USB<>Serial chip.   The "Genuine" Prolific chips are OK in Windows.

Silicon Lab's chips are OK too, but you'll have to install drivers yourself for them, except on Linux, where they "just work" without issue on most distro's.

Note:  The "Fake" chips, are actually micro-controllers programmed to emulate Prolific or FTDI chips.  The emulations are quite good, but can be detected by the "official" drivers.  The current official Prolific drivers will not use the Fakes.   Similarly, FTDI drivers will not use the fakes either.  Earlier FTDI drivers would "brick" them by resetting the VID/PID values to zero.   Caused a lot of bad press that did.  (But they can be un-bricked!)

The fake FDTI chips can be identified as being unable to re-assign the auxiliary I/O pin functions.  Well, the software is happy, but the change doesn’t actually happen.  That's how I found one, I needed to invert the TXD line, but no change happened.

I have also personally come across a chip that was marked up as FTDI, but identified itself to the PC as Prolific!  I suspect there are undocumented ways to "configure" the emulation.

Take care.

73.

Dave G0WBX.

On 28/11/17 20:00, chirp_users-request@intrepid.danplanet.com wrote:

Subject: Re: [chirp_users] Hesenate vhf/uhf
To: chirp_users@intrepid.danplanet.com
Message-ID: <15fff22b39a-171e-13cb3@webjas-vaa246.srv.aolmail.net>
Content-Type: text/plain; charset="utf-8"

shows error under other devices usb port no drivers available.  I will have to find a driver for the cable.
Ray

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