1 Port USB to Serial RS232 Adapter - Prolific PL-2303 - USB to DB9 Serial Adapter Cable.ĬableCreation USB to RS232 Adapter with PL2303 Chipset, 6.6ft USB 2.0 Male to RS232 Female DB9. USB to RS232, OIKWAN USB Serial Adapter with FTDI Chipset,USB 2.0 to Male DB9 Serial Cable for. Driver can auto-download via Windows Update (Windows 7, 8, 8.SABRENT USB 2.0 to Serial (9 Pin) DB 9 RS 232 Converter Cable, Prolific Chipset, HEXNUTS, [Windows. Windows Vista, 7, 8, 8.1 Certified WHQL Driver Compatible with Windows 2000SP4 & Server2003 Installer version & Build date: 1.12.0 () (For PL2303 HXA, XA, HXD, EA, RA, SA, TA, TB versions) This is the Prolific website read on the driver I installed:ĭownload File: PL2303_Prolific_DriverInstaller_v1.12.0.zip July for the ones from the download page) and so Windows prefers it over them. The problem is probably that the non-working driver is the newest (September 2021 vs. I had only one other entry, a 'ser2pl.inf' version ' 3.8.40.0'.ĭisconnect the device, and 'pnputil /delete-driver oemXY.inf' with the INF file you located in the previous step.Ĭonnect the device again, and it should work, at least, it does for me. Then 'pnputil /enum-drivers', and in the output look for Prolific drivers other than the ones from the previous step.

It will add the two driver packages to the driver store and tell you what oemXY.inf files it has assigned to them. What I did is this:įirst install the downloaded driver by unpacking the zip file and 'pnputil /add-driver *.inf /subdirs /install' (the /install is probably not necessary) from the extracted 'Win11_DCHU' directory. Getting it installed is a bit tricky, it seems.

There is a working driver at, a bit down the page listed as 'DCHU (for PC Vendors)'.

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