USB Serial Port (COM4) for ThinkPad driver [sp22291.exe]
USB Serial Port (COM4) Driver for Windows Vista/7/8/10 32-bit and 64-bit. Keep your PC sounding crisp and clear.| Driver name | USB Serial Port (COM4) |
| Version | 1.0.2046.0 |
| Date | 2000-03-10 |
| Win 32 Support | 2K,XP,2K3,VISTA,WIN7 |
| Win 64 Support | |
| Filename | sp22291.exe (1.77 MB) |