Jumper wires for all your development needs.
21-14551 - Solderless Jumper Cables M-F 6" Pack of 10
21-14552 - Solderless Jumper Cables M-M 6" Pack of 10
83-16561RK - Raspberry Pi™ 3 Model B Starter Kit
Looking for the essentials to get started with the new Raspberry Pi 3 Model B? This kit includes the new Raspberry Pi 3, enclosure, a 16GB microSD card loaded with the NOOBS operating system, and a 5.25VDC 2.4A power supply to get you up and running in a hurry.
83-13129 - Arduino Uno Board
The Arduino Uno is a microcontroller board based on the ATmega328. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. It con...
I have dealt with MCM Electronics a number of times and have been more than satisfied.