hello my name is oyvind from Norway. I have a mackbook pro 2017 , and i want to use IT with my 4K 60hz 28 inch PC screen. And i need a multiadapter for sd card , USB Ethernet. I want to use a Thunderbolt 3 cable to DisplayPort at 60hz 4K. And also need a good mouse, and keyboard . Anyone can help me what i need? And can i use the mac while ITS closed with an external screen ?