ITEM NAME:DC Power 5.5x2.1mm Jack to 10 Plug Adapter Connector for Computer Description: 5.5x2.1mm Jack to 10 Plugs Used for external power source and on-board transformer 1 set Multi-function DC Plugs for AC Power Adapter Notebook Laptop Universal Plug male diameter outside/inside(or pin) shown as follows: 7.9*5.5*0.9mm 7.4*5.0*0.6mm 3pin female 6.0*3.0mm 6.3*3.0mm 5.5*2.5mm 4.8*1.7mm 5.5*1.7mm 4.0*1.7mm 5.0*3.0mm Package Includes: 1 Set of 10 Adapters.1 set Multi-function DC Plugs for AC Power Adapter Notebook Laptop Universal. 5.5x2.1mm Jack to 10 Plugs. 1 Set of 10 Adapters.