Variable DC Power Supply 3.6-24V 2.5A Power Supply with 5.5MM x 2.1MM Plug, Includes 5.5MM x 2.5MM Plug Adapter

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DC 9V 1A Power Supply with 5.5MM x 2.1MM Plug, Includes 3 Foot Extension Cable - the power supply has the advertised connector size, yet the 3 foot extension cable internal diameter of a plug is smaller. I can power my device directly from the PSU. I can't fit the plug in when I use the extension. I hope it makes sense.

I had to return this adaptor due to polarity. I needed a negative center and this one is positive. My bad! But the return was handled quickly and no problems whatsoever. Thanks guys! 👍🏻

I needed a 9V DC 1 amp power supply for an Arduino board and this worked perfectly.

So... If you like your electronics to get power, then this is the adapter for you!If, on the other hand, you have mixed to negative feelings towards blinding blue LED power indicators that can literally light up a room at night---especially if it's in a room you're trying to sleep in---maybe this isn't the adapter for you. You WILL have to dig out your roll of electrical tape to cover up the LED.This review would have absolutely been a 5 star rating were it not for that.

Ordered this to power a small portable fan instead of using 2 D batteries. Worked great and the included extension cord was a big bonus.

This didn't have the right power output plug for my application, so I had to replace it, but other than that it's what I needed. It worked for just a day over four months, then failed. Load on the power supply was 1.4 amperes; it's rated for 2.0 amperes, so it should not have been even close to failing because of the load. Bought something else, threw this one in the trash. Do not recommend.

Used for iPad Mini launch port, wasn’t about to pay the ridiculous amount they wanted through their website. Got perfectly in base and charges iPad.