A:Answer From the information provided: A device is compatible if the 1) correct tip is available, 2) voltage is between 3 and 12 V DC, 3) input does not require more than 1.3 A of current, and 4) polarity is positive. Not for use with laptops.
You need to compare the specs on your defunct power supply to see if they match. For instance, if voltage (it has a switchable voltage!) matches. If the plug fits. And if your old one doesn't require 2 or 3 amps or above, you're good.
