A:AnswerYes! The board comes with 2 coax inputs, and comes with an antenna. The antenna is plastic and runs 2 wires into the motherboard. The wires are long enough so that you can elevate the antenna, which is also wall mountable.
The board is also Bluetooth compatible and syncs well with your devices
A:AnswerYou can go to the website and download it to a USB drive. That is what I did with mine. Then go into the BIOS and update it. It will ask if you where the source is and you just point it to the flash drive.
A:AnswerYes, this board will support the new 9900k. This is a z390 board with a robust VRM and an 8 pin and 4 pin cpu power connector. I have a 9700k overclocked to 5Ghz. You’ll be very happy with the board!