ZOSI 1 Female 2.1mm to 8 Male 2.1mm Plugs DC Power Y Splitter Adapter Cable for CCTV Security Camera (1) Cable Length: 39cm/15inches (2) Power adapter DC "Y" pigtail 1 to 8 (3) Inner Size: 2.1mm;Outer Size: 5.5mm (4) DC "Y" pigtail allows up to 8 security camera connections to a single power adapter. (5) Guaranteed for 30 days replacement ,2 Year Warranty and Free Life Time Tech Support.//// Please refer to the last product images on the left side ,it will show you how to contact us for help ! Definitely respond within 24 hours!