| KillerKeys | System Spec | System Spec Portable | System Monitor II | |
| 1.04 | 3.11 | 3.11 | 31.3 | |
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Users´ rating |
| Trialware | Freeware | Freeware | Freeware | Licence |
| $9.95 | FREE | FREE | FREE | Price |
| 6.25 MB | 2.40 MB | 0.97 MB | 0.44 MB | File size |
| Feb 17, 2012 | Jun 27, 2018 | Jun 27, 2018 | Oct 13, 2023 | Update |
| 15 | 51 | 41 | 40 | Downloads |
| Windows XP, Windows Vista, Windows 7 | Windows XP, Windows Vista, Windows Vista x64, Windows 7, Windows 7 x64, Windows 8, Windows 8 x64, Windows 10, Windows 10 x64 | Windows XP, Windows Vista, Windows Vista x64, Windows 7, Windows 7 x64, Windows 8, Windows 8 x64, Windows 10, Windows 10 x64 | Windows Vista, Windows Vista x64, Windows 7, Windows 7 x64, Windows 8, Windows 8 x64, Windows 10, Windows 10 x64, Windows 11 | OS |
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