40-Way Double Row Pin Header - Right Angled 2.54mm (Pack of 2)

49Inline DC-DC Buck Converter Step Down 4.75V-24V to 1V-17V 1.8A(max < 1 minute) 1.2Amp Constant current.

Breadboard Power Supply Module 3.3V or 5V With USB out

USB 1.1- 2.0 Type B ( Square Downstream ) Connector to Pin Conveter 

180pcs M3 Nylon Spacers Screws Nuts Hexagon Studs Box Kit

2.54mm SM 3Pin 22AWG Female Male Housing Connector Plug Wire 10..15mm Length. Female side can be panel mounted

NOTE! Wire colors DIFFER...

Single AA Battery Holder With Wires

Double AAA 1.5V Battery Holder Case

1.25V - 37V Output @ 3A DC-DC 3-40V Input Step Down Adjustable Power Supply 3A peek power, 2A constant current.