Sierra Wireless DM Port (UMTS) (COM9) for Extensa 4220 driver [STEP7-Sierra_MC8790 (Option).exe]
Sierra Wireless DM Port (UMTS) (COM9) Driver for Windows Vista/7/8/10 32-bit and 64-bit. Keep your PC sounding crisp and clear.| Driver name | Sierra Wireless DM Port (UMTS) (COM9) |
| Version | 2.2.4.0 |
| Date | 2008-05-20 |
| Win 32 Support | 2K,XP,2K3,VISTA,WIN7 |
| Win 64 Support | XP,VISTA,WIN7 |
| Filename | STEP7-Sierra_MC8790 (Option).exe (48.47 MB) |