holes for the pins, so it can be connected with normal Dupond lines.
2. Adding 3 rows of the holes for wiring.
3. ATmega16U2 is replaced by CH340G.
4. Plug and Play, the driver will be installed automatically.
5. Select the board UNO inside the DIE.
6. Interface: Common Micro USB interface, can use the phone charging cable, easy to use.
3 * UNO R3 ATMEGA328P-16AU CH340G Micro USB
3PCS Version UNO R3 ATMEGA328P-16AU CH340G Micro USB Compatible For Arduino A