This is device that plugs into the 12-24V outlet in cars. It has a USB type A connector and can source 5V up to 1000mA. This allows the user to charge or run a USB device in a car! We know - it's nothing too novel, but extremely handy if you've got a...

This is device that plugs into the 12-24V outlet in cars. It has a Mini USB type A connector and can source 5V up to 1000mA. This allows the user to charge or run a USB device in a car! We know - it's nothing too novel, but extremely handy if you've got...

High quality switching 'wall wart' AC to DC 5V 1000mA wall power supply. These are switch mode power supplies which mean the output is regulated to 5V (no more 14V outputs!) and the capable output current is much higher (1000mA!). Please note, this...

We designed this 5V and 3.3V regulated DC power supply for rapid prototyping. This board accepts a norminal 9V 2.1mm Barrel connector, and outputs regulated 5V and 3.3V with a combined 200mA.  The 5V and 3.3V output headers are standard 2.54mm...

High quality switching 'wall wart' AC to DC 9V 1000mA wall power supply. These are switch mode power supplies which mean the output is regulated to 9V and the capable output current is much higher (1000mA!). Please note, this specific supply (9V/1A) is...

This is a 5V/2A USB wall adapter. The input is AC 100-240V.    Note: It doesn't come with a USB cable.

This is a DC to DC step up module.    Interface: IN+: Positive of Input terminal IN-: Negative of Input terminal OUT+: Positive of Output terminal OUT-: Negative of Output terminal   Specification: Input voltage range: 3.5V...

This is a 9V battery snap with barrel connector, works perfectly to add a 9V battery to your Arduino USB board. Center-positive 5.5x2.1mm barrel connector.