9V to Barrel Jack Adapter - PRT-09518 - SparkFun Electronics

DC Barrel Jack Plug - Female - PRT-13126 - SparkFun Electronics

Ardumoto Kit Hookup Guide - SparkFun Learn

Description This simple cable has so many uses! Plug the 9 volt battery clip onto a standard 9V battery and connect the other end to anything with a

9V to Barrel Jack Adapter

9V Battery Holder - PRT-10512 - SparkFun Electronics

9V to Barrel Jack Adapter, Sparkfun PRT-09518

SparkFun RedBoard - Programmed with Arduino - DEV-12757 - SparkFun

3 Barrel Jack 2.1mm Power Switch - RobotShop

Auto MP3 Player

Modifying Your EL Wire Inverter - SparkFun Learn

Wall Adapter Power Supply - 9VDC, 650mA (Barrel Jack) - TOL-15314

Description This adapter allows you to connect a barrel jack connector to bare wires. One end has screw terminals and the other has a 5.5x2.1mm,

DC Barrel Jack Adapter - Female

PRT-10287 Datasheet(PDF) - SparkFun Electronics