Ethernet Adapters and Power Consumption

Discussion in 'Mac Basics and Help' started by rpg51, Nov 2, 2012.

  1. rpg51 macrumors 6502


    Jul 4, 2012
    I frequently use my MBA on battery power plugged into an ethernet cable for access to a large LAN and for internet access. I am curious about the extent of power consumed, if any, by the adapter options which I understand are USB to Ethernet and Thunderbolt to Ethernet. Does anyone have any knowledge they could share on this question?
  2. pdjudd macrumors 601

    Jun 19, 2007
    Plymouth, MN
    Ethernet requires very little power - as well as those adapters. USB in of itself is a low power system already but it is just powering the device. It's bus powered and that's all I can gather.

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