The Optima 336 V.34 + FAX + Voice is a modem manufactured by Hayes. 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. Visitors have downloaded this file "3d66.exe" 362 times with an aggregate rating of 1 out of 5 stars based on 9 reviews. It is compatible with PCs running Windows XP, among other operating systems. The total disk space used for this update is 123.5 KB.
5345US
Hayes Optima 336 V.34 + FAX + Voice
Voice Modem Wave Device
Windows 2003, Windows XP, Windows 2000, Windows NT4, Windows ME, Windows 98SE, Windows 98, Windows 95
Upgrades the Optima 336 to 33.6K. 3d66.exe is self-extracting, producing 4 files. Run opt3d66.exe from DOS. There are two updated INF files for Windows 9X. I applied this flash upgrade successfully but still get 28.8K connects. Please post your results.
asur (DG Member) on 29-Jan-2002
See all Hayes Optima 336 V.34 + FAX + Voice ratings and reviews
To get the Hayes Optima 336 V.34 + FAX + Voice 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 Hayes Optima 336 V.34 + FAX + Voice 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 Hayes Driver Update Utility. It is a software utility which automatically finds and downloads the right driver.
To install your new driver on Windows:
Right-click the Start button.
Click "Device Manager">
Find your device in the list.
Right-click the device and select "Update driver"
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.
The following files are found inside the driver download file.
Name | Size | Date |
---|---|---|
README.TXT | 2.0 KB | 20 Dec 1996 |
HAYVOX15.INF | 2.1 KB | 18 Oct 1996 |
OPT3D66.EXE | 235.7 KB | 20 Dec 1996 |
MDMVOX15.INF | 38.0 KB | 29 Oct 1996 |