I am connecting my Laptop (Lenovo w530) with my projector (Epwon TW3200) using the laptops "mini DisplayPort" and a HDMI-adapter to a Hdmi-cable.
The picture displays nicely, however with a lower resolution than it should (1280 x 1024 if I recall correctly). It should be able to display 1920 x 1080, which I can get via the VGA-cable.
When I try to change the display resolution on my laptop all the resolution options are "grayed out"/non-changeable.
The information at the link say that the device is for use with the following so it would not be something that I would purchase for use with any other brand, MacBook, MacBook Pro, or MacBook Air with a mini Display Port, more tellingly though is what is stated about the maximum screen resolution Supports HDMI highest video resolution 1080p.
Found a Lenovo adaptor which states 3840x2160 but only at 30Hz.see info here