Monoprice Ultra Slim Series Passive MHL 3.0 Cable 6ft (6.5ft) - Black (1) Save when you buy the 2-Pack! The Ultra Slim polycarbonate head design results in an HDMI connector head that measures only 16.1mm The micro USB connector measures only 9.3mm wide and 6.3mm thick; allowing it to fit most phones and 4K (Ultra HD): Support for 4K formats up to 2160p30 Simultaneous high-speed data channel