The Belkin Mini Display PorttoHDMI Adapter provides the ability to connect a Macintosh (in my case a MacBook Air) to a large screen TV using HDMI And it just does that by plugging the adapter into the mini display port Next you plug in one end a longer HDMI cable into this adapter and the other end of the HDMI cable into your TVSimply connect the HDMI end to an HDMI cable (sold separately) and connect the other end to a Mini DisplayPort input on your MacBook, Ultrabook, or tablet The compact, 5inch adapter travels well for presentations on the roadBelkin Mini DisplayPort to HDMI Adapter 4k Compatible (Black)A Answer Hi, Cat To answer your first question, this Belkin Mini DisplayPort to HDMI Cable (F2CD044bt06) will not work with Samsung Phone or tablet to connect to a Samsung HDTV because this type of cable is a Mini DisplayPort to HDMI cable, and Samsung devices have micro USB port Belkin Mini Displayport To Hdmi Adapter F2cd078ywapl 4k For Sale Online Ebay Belkin 4k mini displayport