ITEM NAME:10x DC Power Adapter Connector 4.0x1.7mm Female to 5.5 x 2.5mm Male Jack Description: DC Power Plug Adapter Connector 4.0 x 1.7mm Female To 5.5 x 2.5mm Male. for DC plug + socket repairs and DIY projects. replacement for power supply jack, provides reliable connection. It is fit for most standard DC power device. Male: Outside Diameter 5.5 mm/0.22 inch, Inside Diameter 2.5 mm/0.1 inch. Specification: Material: Plastic Size: 41mm/1.61 inch Package Includes: 10 Pieces DC Power Jack Connector Adapter Note: Please allow slight dimension difference due to different manual measurement. Thanks for your understanding !.DC Power Plug Adapter Connector 4.0 x 1.7mm Female To 5.5 x 2.5mm Male. 10 Pieces DC Power Jack Connector Adapter. It is fit for most standard DC power device. for DC plug + socket repairs and DIY projects.