| Name | Updated | Download |
|---|---|---|
| VS-KB21_VS-KB21N-User Manual-EnglishUser Manual | December 24, 2024 | Download |
| VS-KB21_VS-KB21N-User Manual-Traditional Chinese (繁體中文)User Manual | December 23, 2024 | Download |
| VS-KB21_VS-KB21N-Installation Guide-EnglishInstallation Guide | September 06, 2024 | Download |
| VS-KB21_VS-KB21N Installation Guide-Traditional Chinese (繁體中文)Installation Guide | September 06, 2024 | Download |