I am Not a Geek dot com has posted a review on the Samsung 170T monitor

One of the best features of this monitor is that is supports both Analog and Digital inputs. In fact Samsung includes both cables with the 170T which saves you the cost of going out an buying the other cable if you switch from one to the other. You can actually hook up a computer with an analog video card and one with a digital video at the same time and use a button on the monitor to switch back and forth between the displays.

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