Features:28 in 1 set Multi-functional DC Plugs for AC Power Adapter Notebook Laptop Universal.Used for external power source and on-board transformer5.5x2.1mm Female Jack to 28 multi-type Male Plugs.<br>Specifications:Male Plug Diameter outside\/inside(or pin):7.9mmx1.0mm7.4mmx1.0mm round7.4mmx1.0mm octahedron6.0mmx3.0mm6.0mmx1.0mm5.5mmx2.5mm5.5mmx2.5mm5.5mmx2.5mm5.5mmx2.1mm5.5mmx2.1mm5.5mmx2.1mm5.5mmx1.7mm5.0mmx2.5mm5.0mmx2.1mm5.0mmx1.0mm5.0mmx1.0mm4.8mmx1.7mm4.8mmx1.7mm4.0mmx1.7mm3.5mmx1.35mm3.0mmx1.0mm2.5mmx0.7mmx10mm2.5mmx0.7mmx8mmfor apple4pin female3pin female3.5mm mono plug2.5mm mono plug<br>Package includes:1 x 28 Multi-type Male Plugs