10pcs robotdyn usb serial adapter ch340g 5v/3.3v usb to

原装正品 贴片 ch340n sop-8 usb转串口ic芯片 内置晶振

ch340n sop8 usb转ttl模块 pro mini下载器 替代ch340g ch340e

原装正品 ch340g ch340c ch340t ch340n sop16 usb总线转接芯片

集成电路 ch340n 贴片sop-8 usb转串口芯片 内置晶振 全新原装 ic