This is a very handy adapter to have when you have a power supply that has the correct power output but the plug does not fit your device. Power Supply Tip Barrel Plug DC Power Adapter from 5.5mm x 2.1mm /1.1 (Female) to 5.5/2.5mm (Male). This adapter has a receiver for a 2.1mm with 1.1mm center pin on the female side for plugs with a 1.1mm center pin. It also can accept a power supply plug with a 5.5mm / 2.1mm or 2.5mm male end. So a power supply that has a 5.5mm / 2.5mm plug or 5.5mm barrel plug with a 1.1mm center pin can be inserted into the back of this adapter as well as a 5.5mm x 2.1mm.
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