USB Serial Adapter Drivers

USB Serial Adapter Drivers

Download the latest drivers for your Plugable PL2303-DB9 USB Serial Adapter.

Please note, these may not be the latest drivers, but they are the ones we recommend.

Additional drivers, provided directly by Prolific, can be found on this page .

On Prolific's site, use guest for the username and password.

Applicable Products

Note: macOS 10.13 High Sierra has introduced additional security to Gatekeeper requiring extra steps to enable the driver, we have documented the procedure in our Knowledge Base.

Platform Important Notes Date Version and Download
 Windows 10, 8.x, and 7

Drivers will typically install automatically through Windows Update
 
 Windows XP and Above 2018  1.20.0
 macOS 10.9 to 10.15.x

MacOS 10.13 High Sierra has introduced additional security to Gatekeeper requiring extra steps to enable the driver, we have documented the procedure in our Knowledge Base
December 4, 2019  2.0.0
 Linux Kernel 2.6.11 and Above

Support for the adapter is built into Linux kernels above version 2.6.11.
 
 Other

Please visit the Prolific PL2303 driver download page for all other operating system options. Login as guest with the password guest and choose USB Serial/Parallel under USB Smart I/O Controllers.
 
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