I am interested in buying this 4k monitor for my surface pro 2 to replace 7 years old 24 inch iMac. Has anyone successfully connected surface pro 2 to this monitor at 4k resolution? Do I need to buy docking station? My impression is that only the docking station supports 4k connection, but don't understand why. I assume this monitor should also work for my macbook pro 13 inch with retina at lower resolution. Thank you.