Optima Centoris A Series (EF2D) Driver Download (Official)

Download the latest version of the Centoris A Series (EF2D) driver for your computer's operating system. This version of "EF2D_Modem_XP.zip" has been downloaded 53 times with a user rating of 5 out of 5 stars, based on 10 reviews. It is compatible with PCs running Windows XP, among other operating systems. The total disk space used for this update is 1.1 MB.

10 Ratings
53 Downloads

Supported Models

Centoris A Series (EF2D)

Conexant Soft 56K Modem (qtm9905)

Manufacturers

Optima

Conexant

Supported Operating Systems

Windows XP

File Name

Versions

5.03.23.00 (6-Aug-2002)
5.03.23.00 (2002-08-06) via .inf

Additional Notes

Centoris A Series (EF2D)

Conexant Soft 56K Modem

Driver to support the Conexant Soft 56K Modem (qtm9905)

Uploaded By

Malathy (DG Staff Member) on 7-Mar-2006

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
Modem/WinXP/Modem - 50323(logo'd)/CARPDLL.DLL 51.7 KB 22 Jul 2002
Modem/WinXP/Modem - 50323(logo'd)/HSFCI001.dll 12.6 KB 14 May 2002
Modem/WinXP/Modem - 50323(logo'd)/HSFHWVIA.sys 157.7 KB 22 Jul 2002
Modem/WinXP/Modem - 50323(logo'd)/HSF_CNXT.sys 602.5 KB 22 Jul 2002
Modem/WinXP/Modem - 50323(logo'd)/HSF_DP.sys 1.2 MB 22 Jul 2002
Modem/WinXP/Modem - 50323(logo'd)/HXFSetup.exe 290.8 KB 17 Jul 2002
Modem/WinXP/Modem - 50323(logo'd)/MDMXSDK.sys 9.9 KB 22 Oct 2001
Modem/WinXP/Modem - 50323(logo'd)/MdmXSdk.dll 57.3 KB 22 Oct 2001
Modem/WinXP/Modem - 50323(logo'd)/QTM0000.CTY 144.3 KB 5 Aug 2002
Modem/WinXP/Modem - 50323(logo'd)/STRMDISP.SYS 36.3 KB 22 Jul 2002
Modem/WinXP/Modem - 50323(logo'd)/carpserv.exe 4.6 KB 22 Jul 2002
Modem/WinXP/Modem - 50323(logo'd)/disk1 23 bytes 4 Feb 2002
Modem/WinXP/Modem - 50323(logo'd)/qtm99055.cat 11.3 KB 7 Aug 2002
Modem/WinXP/Modem - 50323(logo'd)/qtm99055.inf 32.4 KB 6 Aug 2002

How to Update Centoris A Series (EF2D) Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the Centoris A Series (EF2D) 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 Optima Centoris A Series (EF2D) 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 Optima Centoris A Series (EF2D). It is a software utility which automatically finds and downloads the right driver.

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.

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