Feature: 1. Multifunctional: This electrnoics starter kit is multifunctional and can be used to learn programming and electronic circuit knowledge, it is suitable for beginners to get started, including R3 motherboard and 830 holes breadboard for experimental use. 2. 830 Holes Design: This development board is designed with 830 holes, which is a reasonable layout and convenient for connecting different components, which is very practical. 3. Excellent ABS Plastic Material: This development board module kit is made of excellent ABS plastic material, which is sturdy, not easy to be damaged, and has a long service life. 4. Good Compatibility: This development board kit is well adapted to fully support for R3 components, and can be extended with a variety of electronic components for DIY programming. 5. Wide Application: This 830 hole breadboard kit has a wide range of applications, which can be used at home, school, laboratory, etc. to innovatively expand the field of electronic programming and develop students' hands on practice and creativity. Specification: Item Type: Development Board Kit Material: ABS Plastic. Package List: 1 x Power Module (Do not use voltage higher than 9V) 1 x For R3 Mainboard 1 x 830 Hole Breadboard 65 x Jump Wires 140 x Solderless Jump Wires 1 x 20 Pins Female to Male Jump Wire 2 x Pin Headers (40 Pins) 1 x Fine Potentiometer 2 x Photoresistors 1 x Thermal Resistor 5 x Rectifier Diodes (1N4007) 5 x NPN Transistors (PN2222) 1 x IC 4N35 1 x IC 74HC595 1 x Active Buzzer 1 x Passive Buzzer 10 x Small Switches 10 x 22pf Ceramic Capacitors 10 x 104 Ceramic Capacitors 5 x 10uF 25V Electrolytic Capacitors5 x 47uF 16V Electrolytic Capacitors10 x White LEDs10 x Yellow LEDs10 x Blue LEDs10 x Green LEDs10 x Red LEDs1 x RGB LED10 x Resistors (10R)10 x Resistors (100R)10 x Resistors (220R)10 x Resistors (330R)10 x Resistors (1K)10 x Resistors (2K)10 x Resistors (5.1K)10 x Resistors (10K)10 x Resistors (100K)10 x Resistors (1M)1 x Motherboard Box 2 x Plastic Boxes1 x Resistor Identification Card