Ruth's sister 28pcs DC Power Adapter Kit 5.5x2.1mm internal power cable

28-piece DC adapter kit for laptop power

This kit supplies twenty-eight male plugs that mate with a single 5.5 mm by 2.1 mm female jack. It is designed for technicians and hobbyists who service multiple laptop brands and need a broad range of barrel-connector sizes in one package. The assortment covers common outer diameters from 2.5 mm to 7.9 mm with matching inner diameters or pin sizes. No cables or power supply are included.

Fits into a repair kit or bench drawer

The adapters convert a standard 5.5x2.1 mm jack into the various plug profiles required by different laptops and on-board transformer modules. Each plug pushes onto the jack without tools, freeing the user from sourcing individual tips for each device. The compact set keeps the work area tidy and reduces the need to stock separate adapter cables for every connector variant.

Replaces loose collections of single tips

The kit consolidates twenty-eight distinct plug types — including 4-pin female, 3-pin female, 3.5 mm mono and 2.5 mm mono — that would otherwise be bought individually. The upgrade is worthwhile when a workshop regularly encounters the listed diameters such as 7.4x1.0 mm octahedron, 6.0x3.0 mm or 2.5x0.7 mm in 8 mm and 10 mm lengths. It does not suit users who only need one fixed connector or require a cable assembly with integrated wire.