Main Changes from the older version: Add two rows of the holes for the pins. So it can be connected with normal Dubond line. Add 3 rows of the holes for wiring. Change the in-line package of ATMEGA328P to flat package. CH340G Replace ATmega16U2 Plug UNO development board, the driver will be automatically installed. select the board UNO inside the die. Select the COM port, this can be in my computer queries, just inside your uno port development board You’d better to choose arduino own routine procedures, burn into the board NOTE:The blue cable change to become black cable.Higher quality and longer. Specification: Cable length:51.5cm Cable + development board weight:51g Package Include: 1 x ATmega328P CH340G Board 1 x USB Cable 7 x Gilded Pin