The Rockwell 56K ACF II Fax+Data+Voice Modem is a modem manufactured by Harmony Multimedia. 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 - "hm18020-1.zip" - has an average rating of 5 out of 5 stars based on 12 reviews, and has been downloaded 901 times. The uploader reports that this update will work successfully on PCs running Windows XP. The total disk space used for this update is 693.2 KB.
HM18020/20-1
56K Plug&Play Modem
Rockwell 56K ACF II Fax+Data+Voice Modem
Wave Device for Voice Modem
Windows 2003, Windows XP, Windows 2000, Windows NT4, Windows ME, Windows 98SE, Windows 98, Windows 95
hm18020-1.zip (693.2 KB)
Greg Hurst (DG Member) on 4-Dec-2003
To get the Rockwell 56K ACF II Fax+Data+Voice Modem 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 Harmony Multimedia Rockwell 56K ACF II Fax+Data+Voice Modem 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 Harmony Multimedia Driver Update Utility. It is a software utility which automatically finds and downloads the right driver.
After you get your new driver, you need to put it on your computer. On Windows, there's a tool called Device Manager that helps with this. It shows you all the parts of your computer and the drivers they use. To finish setting up the new driver, you'll probably need to turn your computer off and on again.
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 |
|---|---|---|
| RKACF2.INI | 1.6 KB | 14 Apr 1999 |
| rkv56d2w.inf | 2.1 KB | 23 Oct 1998 |
| Readme.txt.txt | 289 bytes | 28 Feb 2001 |
| Japanese.pdf | 198.9 KB | 30 Oct 1999 |
| RKV56D2.inf | 18.5 KB | 29 Oct 1999 |
| German.PDF | 305.2 KB | 29 Mar 1999 |
| English.pdf | 238.7 KB | 29 Mar 1999 |
| RKACF2.CPL | 307.2 KB | 28 Oct 1999 |