| 32.92% | %SYSDIR% \ DRIVERS \ ptduvsp.sys | USB Serial Port Device Driver (MSS Ver.3) | DEVGURU Co., LTD.(www.devguru.co.kr) | 3.3.3056.810 | 1680774 |
| 32.3% | %SYSDIR% \ DRIVERS \ ptduvsp.sys | USB Serial Port Device Driver (MSS Ver.3) | DEVGURU Co., LTD.(www.devguru.co.kr) | 3.3.3056.810 | 1362156 |
| 22.36% | %SYSDIR% \ DRIVERS \ ptduvsp.sys | USB Serial Port Device Driver (MSS Ver.3) | DEVGURU Co., LTD.(www.devguru.co.kr) | 3.3.3056.810 | 2733408 |
| 2.48% | %SYSDIR% \ DRIVERS \ ptduvsp.sys | USB Serial Port Device Driver (MSS Ver.3) | DEVGURU Co., LTD.(www.devguru.co.kr) | 3.3.3056.810 | 18026633 |
| 2.48% | %SYSDIR% \ DRIVERS \ ptduvsp.sys | USB Virtual Serial Port Driver | DEVGURU Co,LTD. | 2.0.12.816 | 4771609 |
| 2.48% | %SYSDIR% \ DRIVERS \ ptduvsp.sys | USB Serial Port Device Driver (MSS Ver.3) | DEVGURU Co., LTD.(www.devguru.co.kr) | 3.3.3056.810 | 17296018 |
| 1.86% | %SYSDIR% \ DRIVERS \ ptduvsp.sys | USB Virtual Serial Port Driver | DEVGURU Co,LTD. | 3.1.15.810 | 19733870 |
| 1.24% | %SYSDIR% \ DRIVERS \ ptduvsp.sys | USB Serial Port Device Driver (MSS Ver.3) | DEVGURU Co., LTD.(www.devguru.co.kr) | 3.3.3056.810 | 30902753 |
| 1.24% | %SYSDIR% \ DRIVERS \ ptduvsp.sys | USB Virtual Serial Port Driver | DEVGURU Co,LTD. | 2.0.12.816 | 2127487 |
| 0.62% | %SYSDIR% \ DRIVERS \ ptduvsp.sys | USB Virtual Serial Port Driver | DEVGURU Co,LTD. | 2.0.12.816 | 26944645 |