Speed Dragon SD-X2303-1 Driver Download

Download the latest version of the SD-X2303-1 driver for your computer's operating system. This version of "DL-0254102_Vista_32.zip" has been downloaded 48 times with a user rating of 4 out of 5 stars, based on 5 reviews. It is compatible with PCs running Windows Vista, among other operating systems. The total disk space used for this update is 232.6 KB.

5 Ratings

Supported Models


ADM851X USB To Fast Ethernet Adapter

Prolific USB-to-Serial Bridge

USB to Parallel Port

USB to Serial Port

USB-Parallel Bridge


Speed Dragon



Supported Operating Systems

Windows Vista

File Name

Versions (2003-12-19) via .inf

Additional Notes


RS232 Serial ExpressCard (1-Port) Driver File

Uploaded By

Manivannan (DG Staff Member) on 27-Nov-2007

How to Update SD-X2303-1 Device Drivers

Step 1 - Download Your Driver

To get the SD-X2303-1 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 Speed Dragon SD-X2303-1 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 Speed Dragon SD-X2303-1. It is a software utility which automatically finds and downloads the right driver.

Step 2 - Install Your Driver

To install your new driver on Windows:

  1. Right-click the Start button.

  2. Click "Device Manager">

  3. Find your device in the list.

  4. Right-click the device and select "Update driver"

  5. Follow the steps on screen.

Restart your computer when done.

This keeps your computer working at its best.

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.

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
ADM851X.sys 27.1 KB 19 Dec 2003
DRemover98_2K.exe 135.2 KB 7 Nov 2001
Lpt-uninst.exe 151.8 KB 24 Oct 2001
NET851X.INF 10.2 KB 19 Dec 2003
PARPPL.vxd 11.5 KB 9 Aug 2001
PARUPL.sys 51.4 KB 9 Aug 2001
SER9PL.sys 34.4 KB 26 Jul 2004
SERSPL.INF 2.3 KB 23 May 2001
SERSPL.VXD 26.7 KB 26 Jul 2004
SERWPL.INF 8.6 KB 27 Jul 2004
parppl.inf 1.4 KB 9 Aug 2001
parupl.inf 857 bytes 1 Sep 2000
ser2pl.sys 42.8 KB 28 Jun 2004
uninst.txt 17 bytes 1 Sep 2000
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