想請問一下K401L這個孔是什麼介面??因為官方提供的規格沒有提到~官方只有寫到這幾個1 x COMBO audio jack2 x USB 3.0 port(s)2 x USB 2.0 port(s)1 x RJ45 LAN Jack for LAN insert1 x HDMIhttps://www.asus.com/tw/Notebooks/K401LB/specifications/麻煩大家解答一下~~感恩