Bought to connect my MacBook Pro, Mid 2012 with a beamer. Works without problems also with an old projector (Toshiba TLP670E) who does not have a HDMI port.
Note: The adapter only transmits video signals, no audio! Who needs Audio and video transmission simultaneously, requires a Mini DisplayPort to HDMI adapter or connects to the sound via headphone jack (MacBook) and audio cable (projector, TV).