Mini Display Port: Extend your Surface Pro display by utilizing the HDMI input or Mini DP. (Only one display at a time )
4K HDMI Supports (3840 pixels wide by 2160 pixels high. 4096 pixels wide by 2160 pixels high @ 30hz) Mini Displayport supports resolutions up to : 3840 x 2160 pixels @ 60hz
SD | Micro SD : Quickly transfer SD and Micro SD memory card data to and from your Surface Pro tablet. SD 3.0 enabled transfer speeds.
USB 3.0 : Add peripherals and other USB enabled accessories. Connect USB thumb drives, mouse, and external hard drives..
Juiced Systems Optix Adapter is designed with precision and performance. Unit is backed with a 2 YEAR manufactures warranty.