1. Brand new and high quality
2. With three output ports, convenient to choose one of them to use at a time as you demand.
3. DVI output, connect the DVI devices using a DVI cable
4. HDMI output, connect the HDMI devices using a HDMI cable
5. VGA output, connect the VGA devices using a VGA cable
6. Mini Display Port, connect Mac Book, Mac Book Pro, or Mac Book Air