This high-quality DC extension cable features heavy-duty 16awg cable with 5.5mm x 2.1mm connector. The total length is 16.4ft perfect for any wire extension without the need to solder or add an additional connector. 

Specification: 

DC female input: 5.5mm x 2.1mm 

DC male output: 5.5mm x 2.1mm

Wire type: 16Awg

Length 16.4ft