The Kaon v-OSK is a large touch-screen display with an embedded computer and high-performance graphics system. Although you may have multiple video ports on the back of the v-OSK, the base model cannot drive a second monitor.
If you need to drive a second monitor, such as a projector, the v-OSK can be upgrade to a v-OSK Presenter®, which adds the necessary hardware to drive a second monitor.
The Kaon PresenterPro is designed primarily to drive an external monitor, and may be a better choice than a v-OSK Presenter in some sales and marketing situations. In particular the Kaon PresenterPro is more portable than the v-OSK Presenter.