This is a Mini DisplayPort video output jack. CinemaView products provide native connectivity to this with no adapter required.
Some older Macs have this Mini DVI port. A converter is required to connect to CinemaView products.
Click here for examples.You will also need a Mini-DVI (m) to DVI-D (f) adapter cord for the converter.
Click here for examples.
Some newer PCs have this fullsize DisplayPort jack. An adapter is required to connect to CinemaView products.
Click here for examples.