Siemens Prolific USB-to-Serial Bridge Driver Download

17 Ratings (see all reviews)

Supported Models

Siemens Data Cable KQ-U8A No: WT048000317

Prolific USB-to-Serial Bridge

USB Composite Device

USB Data Cable

USB Dta Cable

USB to Serial Port




USB World

Supported Operating Systems

Windows XP, Windows 2000, Windows ME, Windows 98SE, Windows 98

File Name

Versions (2004-03-11) via .inf (2005-06-20) via .inf

Uploaded By

Maddin (DG Member) on 12-Mar-2007

Ratings & Reviews

See all Siemens Prolific USB-to-Serial Bridge ratings and reviews

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
Cable_Driver.exe 24.6 KB 5 Jan 2005
DRemover98_2K.exe 135.2 KB 7 Nov 2001
SER2UP.INF 2.5 KB 21 Dec 2005
SER2UP.VXD 21.2 KB 7 Jul 2005
SER9PL.sys 34.3 KB 27 Oct 2003
SERSPL.INF 2.3 KB 23 May 2001
SERSPL.VXD 26.7 KB 27 Oct 2003
SERWPL.INF 8.6 KB 25 Feb 2004
USB.exe 208.9 KB 5 Jan 2005
USB.u2k 84 bytes 5 Jan 2005
USB.u98 142 bytes 5 Jan 2005
USB2k.exe 47.6 KB 5 Jan 2005
USBPORT.SYS 42.3 KB 7 Jul 2005
USBbus.inf 8.1 KB 5 Jan 2005
USBvxd.inf 10.8 KB 5 Jan 2005
USBw2k.inf 4.6 KB 5 Jan 2005
USBwdm.inf 4.8 KB 5 Jan 2005
ser2pl.sys 43.1 KB 1 Dec 2003
setup.ini 300 bytes 5 Jan 2005
slabbus.sys 51.0 KB 5 Jan 2005
slabcm95.sys 10.6 KB 5 Jan 2005
slabcmnt.sys 6.1 KB 5 Jan 2005
slabcomm.vxd 23.9 KB 5 Jan 2005
slabcr.sys 4.0 KB 5 Jan 2005
slabser.sys 82.8 KB 5 Jan 2005
slabvcd.vxd 13.2 KB 5 Jan 2005
slabvcr.vxd 30.6 KB 5 Jan 2005
slabwh95.sys 6.7 KB 5 Jan 2005
slabwhnt.sys 5.8 KB 5 Jan 2005
tmp 2.5 MB 1 Jun 2004
usb2vcom.inf 8.5 KB 21 Dec 2005
usb2vcom.sys 29.2 KB 21 Dec 2005

How to Update Prolific USB-to-Serial Bridge Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the Prolific USB-to-Serial Bridge 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 Siemens Prolific USB-to-Serial Bridge 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 Siemens Driver Update Utility. It is a software utility which automatically finds and downloads the right driver.

To find the newest driver, you may need to visit the Siemens website. Most major device manufacturers update their drivers regularly.

Step 2 - Install Your 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.

How to Open Device Manager

  • In Windows 11, 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

How to Install a driver from Device Manager

  1. Locate the device and model that is having the issue and double-click on it to open the Properties dialog box.

  2. Select the Driver tab.

  3. 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.

This website is not affiliated with Siemens. All company names/logos are properties of their owners.
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