铜缆高速连接概念股盘初活跃，得润电子涨停

Group 1 - The concept stocks related to copper cable high-speed connections are active in early trading [1] - Derun Electronics (002055) reached the daily limit increase [1] - Bochuang Technology (300548) rose over 10% [1] Group 2 - Changfei Optical Fiber (601869), Xianying Technology (301067), and Xinya Electronics (605277) also experienced gains [1]