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![](http://upload.wikimedia.org/wikipedia/commons/thumb/e/e3/EIAJconnector2_edit.jpg/300px-EIAJconnector2_edit.jpg)
Credit: User:MIckStephenson
The yellow-tipped EIAJ connector is a small (~2 cm) standard DC power supply jack for small appliances, commonly used to adapt transformers converting mains power for laptop computers and peripheral devices.