Specifications:Brand: QGeeMResolution: 4K@30HZCable Length: 1.8m Compatibility:1. Compatible with most laptops that support DP Alt Mode(Not a full list):for MacBook Air 2018/2019/2020, MacBook Pro 2016/2017/2018/2019/2020, MacBook 12" 2017,for Huawei MateBook, Huawei MateBook X, Huawei MateBook X Pr..