The mdp2hd4ks mini displayport to hdmi adapter enables you to connect a mdp equipped ultrabooktrade tablet or laptop computer such as the thinkpadt440 series to an hdmi displaythis adapter is compatible with mini displayport 12 amp hdmi 4k 30 hz and as a result can support video resolutions up to ultra hd 4k as well as the accompanying digital audio up to 71 channel surround sound with support for ultra hd 4k the mdp to hdmi adapter ensures you can convert mini displayport to h