Prolific USB-to-Serial Bridge Driver
USB to Serial Port Driver
3312_USB_SERIAL_DRIVER_PC.zip (255.0 KB)
USB to Serial Cable - PC Drivers
Cables Driver File
Alagappan (DG Staff Member) on 20-Apr-2006
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The following files are found inside the driver download file.
|SERIAL DRIVER/MAC/PL2303x_1.0.7b4.pkg/Contents/PkgInfo||8 bytes||9 Jun 2003|
|SERIAL DRIVER/MAC/PL2303x_1.0.7b4.pkg/Contents/Resources/English.lproj/PL2303x_1.0.7b4.info||291 bytes||9 Jun 2003|
|SERIAL DRIVER/MAC/PL2303x_1.0.7b4.pkg/Contents/Resources/PL2303x_1.0.7b4.bom||35.6 KB||9 Jun 2003|
|SERIAL DRIVER/MAC/PL2303x_1.0.7b4.pkg/Contents/Resources/PL2303x_1.0.7b4.pax||87.0 KB||9 Jun 2003|
|SERIAL DRIVER/MAC/PL2303x_1.0.7b4.pkg/Contents/Resources/PL2303x_1.0.7b4.sizes||49 bytes||9 Jun 2003|
|SERIAL DRIVER/MAC/ProlificUSBSerial1.3.0b2.sit||18.2 KB||7 Aug 2004|
|SERIAL DRIVER/WINDOWS/98_2009_2K20021/DRemover98_2K.exe||135.2 KB||7 Nov 2001|
|SERIAL DRIVER/WINDOWS/98_2009_2K20021/SER9PL.sys||194.1 KB||12 Aug 2003|
|SERIAL DRIVER/WINDOWS/98_2009_2K20021/SERSPL.INF||2.3 KB||23 May 2001|
|SERIAL DRIVER/WINDOWS/98_2009_2K20021/SERSPL.VXD||26.7 KB||12 Aug 2003|
|SERIAL DRIVER/WINDOWS/98_2009_2K20021/SERWPL.INF||8.6 KB||13 Aug 2003|
|SERIAL DRIVER/WINDOWS/98_2009_2K20021/ser2pl.sys||112.0 KB||31 Jul 2003|
|SERIAL DRIVER/WINDOWS/wince-arm||22.1 KB||3 Feb 2004|
To get the 3312 driver, click the green download button above. After you complete your download, move on to Step 2.
If the driver listed is not the right version or operating system, search our driver archive for the correct version. Enter 3312 into the search box above and then submit. In the results, choose the best match for your PC and operating system.
Tech Tip: If you are having trouble deciding which is the right driver, try the Driver Update Utility for 3312. It is a software utility which automatically finds and downloads the right driver.
Once you have downloaded your new driver, you'll need to install it. In Windows, use a built-in utility called Device Manager, which allows you to see all of the devices recognized by your system, and the drivers associated with them.
In Windows 10 & Windows 8.1, right-click the Start menu and select Device Manager
In Windows 8, swipe up from the bottom, or right-click anywhere on the desktop and choose "All Apps" -> swipe or scroll right and choose "Control Panel" (under Windows System section) -> Hardware and Sound -> Device Manager
In Windows 7, click Start -> Control Panel -> Hardware and Sound -> Device Manager
In Windows Vista, click Start -> Control Panel -> System and Maintenance -> Device Manager
In Windows XP, click Start -> Control Panel -> Performance and Maintenance -> System -> Hardware tab -> Device Manager button
Locate the device and model that is having the issue and double-click on it to open the Properties dialog box.
Select the Driver tab.
Click the Update Driver button and follow the instructions.
In most cases, you will need to reboot your computer in order for the driver update to take effect.
Tech Tip: Driver downloads and updates come in a variety of file formats with different file extensions. For example, you may have downloaded an EXE, INF, ZIP, or SYS file. Each file type has a slighty different installation procedure to follow.
For more help, visit our Driver Support Page for step-by-step videos on how to install drivers for every file type.