US Robotics Courier 14,400 Dual Standard Driver Download

US Robotics Drivers

The Courier 14,400 Dual Standard is a modem manufactured by US Robotics. If you cannot connect to the network, or have slow transfer speeds or intermittent disconnection problems, you may need to update your modem driver or firmware. This update - "usrsdl25.exe" - has an average rating of 5 out of 5 stars based on 5 reviews, and has been downloaded 473 times. Our users report success installing this driver update on PCs running Windows XP. The total disk space used for this update is 645.7 KB.

5 Ratings (see all reviews)

Supported Models

V.Everything 25 MHz

Courier 14,400 Dual Standard

Courier 14,400 Dual Standard PC

Courier 14,400 HST

Courier 14,400 HST PC

Courier 14,400 V32bis Fax

Courier 14,400 V32bis Fax PC

Courier 14,400 V32bis-V42bis PC


US Robotics

Supported Operating Systems

Windows 2003, Windows XP, Windows 2000, Windows NT4, Windows NT3.51, Windows ME, Windows 98SE, Windows 98, Windows 95, Windows 3.1

File Name

Additional Notes

This is the 25 MHZ driver version. It has the flash program and full instructions.

Uploaded By

SS Computers (DG Member) on 4-Dec-2003

Ratings & Reviews

See all US Robotics Courier 14,400 Dual Standard ratings and reviews

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
MDMCRV90.INF 58.0 KB 30 Oct 1998
READINF.TXT 7.5 KB 29 Jun 1998
USR.CFG 100 bytes 20 Mar 1998
SV25.XMD 524.4 KB 13 Mar 1998
V90HOW2.TXT 10.4 KB 18 Mar 1998
INSTALL.TXT 2.3 KB 18 Mar 1998
CRV90REL.PDF 7.7 KB 20 Mar 1998
XMODEM.TXT 5.8 KB 18 Mar 1998
FILES.TXT 2.1 KB 9 Apr 1998
SDL25.EXE 421.2 KB 13 Mar 1998
CRV90DOC.PDF 22.3 KB 6 Mar 1998
MDMUSRCR.INF 54.4 KB 29 Jun 1998
READINF.PDF 89.4 KB 29 Jun 1998
README.1ST 205 bytes 17 Mar 1997

How to Update Courier 14,400 Dual Standard Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the Courier 14,400 Dual Standard 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 US Robotics Courier 14,400 Dual Standard 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 US Robotics 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 US Robotics 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 US Robotics. All company names/logos are properties of their owners.
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