... 500k 1000k3.usage:Perating switches used in all types of electronic equipment ,audio devices office devices ,commications devices ,measuring devices , ... 2.5mm/3.5mm/6.35mm),Dc Power Jacks,RCA Jacks,Connectors,Switches(flip/micro/power/rocket/multi function),A&V Composite ... -Board,USB,PCB,HDMI,DR/DB Jacks,DIV,SATA etc.(7).Kangzheng Electronics Co.,Ltd ...