Name: 2 in 1 module Interface nature: USB to serial port External power supply: There is an external power supply Provide 5V and 3.3V voltage output, USB to UART, USB to IIC/I2C With LED light status display, function, voltage switch terminal Material:PCB colour:Blue+yellow Package Contents: 1 * 2 in 1 module 1 * double female Dupont cable Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.