This is a simple cable that adapts from a USB port to a 5.5x2.1mm barrel connector, center positive. This cable allows the user to use a USB port on a comp
Barrel Jack Adapter - USB to 5.5mm : : Electronics & Photo
Barrel Jack Adapter - USB to 5.5x2.1mm
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Wall Adapter Power Supply - 5V DC 2A (Barrel Jack) - TOL-12889 - SparkFun Electronics
Barrel Jack Adapter - USB to 5.5x2.1mm
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DC Barrel Jack Adapter - Female - PRT-10288 - SparkFun Electronics
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