Quote:
Originally Posted by Hack&Lube
Both sides are not labeled and rarely are on such devices. Usually it will only say DC in 12V molded into the plastic but not have any amperage information.
I did find my adapter (says SMC in tiny print).
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If you can match the plug and polarity, you can pretty much match capacity by size

Big devices/laptops/external 3.5" drives use big power supplies, smaller devices use mid-size ones, and tiny devices use the smallest wall warts. It's pretty rare that any switching power supply today that looks like its the right physical size for the device isn't going to deliver enough current.