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Can I use 12V 500mA DC adapter for my ADSL Modem that requires 10V 550mA input?

Modem: UTstarcom (UT300RTU), 10V 500mA

ERD AC/DC Adapter: 12V 550mA
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More about 12v 500ma adapter adsl modem requires 10v 550ma input
  1. Best answer
    no, you will damage the modem. It will work for a time then something will pop in the modem due to the over-voltage.
  2. zink1701 said:
    no, you will damage the modem. It will work for a time then something will pop in the modem due to the over-voltage.


    At present I have used the modem for past 1 hour, the device seems to get slightly heated but works fine. I don't know whether to use it by this way or buy a proper adapter?
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