This 4 way splitter allows you to connect it to a standard 2.1mm jack on any of Haydon's Inline power supplies and it then provides you with 4 outputs instead of the single one. This of course does not provide you with 4 x 1A outputs if you plug it into a 1A Inline PSU. It will still only give you 1A total output across all your 4 outputs 1 Female to 4 Male CCTV power slitter cable 2.1mm Jack Length 40cm (15.7inch) Enables to use one power supply for 4 cameras