Dafensoy DC Power Adapter DC5.5×2.1 Female to 4.0×1.7 Male 90 Degree Angle Power Plug Adapter (2-pack),Used for Notebook Computers, Tablet Computers, LED Lights, Routers, etc.Plug and play, no need for other equipment and software, small and exquisite, easy to use, easy to carry, easy to store Material: Nickel-plated connectors, fine solder joints, resistance to plugging, good contact, to ensure the stability, durability and long life of the transmission signal. Purpose: This item can be used for power connector conversion. Applicable equipment: notebook power adapters, portable power supplies, routers, desk lamps, headlights and other small power supplies. Note: Please make sure that the DC output of the AC adapter is the same as the tip size before purchasing. Choose the adapter model you need.