usb with low power or hardware failure dongle zydas

Discussion in 'MacBook Air' started by couto27, Jan 18, 2010.

  1. macrumors 6502

    Joined:
    Nov 10, 2008
    Location:
    lisboa,portugal
    #1
    first of all i apologize if this question already being ansered .

    in my place of work im surrounded with large metal walls and the only way to get wireless is with a 4 metres usb and a dongle in the end, so that my laptop can stay in the desk.
    (im no aloud to use more or diferent routers)

    ive being using a dongle xg-1211 zdlan with chipset zydas and it works fine on my previous macbook unibody.

    but now that i bought a mb air rev i have an unexpected situacion.

    if i use a 1 meter usb cable the dongle works fine, but if i use more than 1 meter cable , like 2, 3 or 4 metres the dongle doesnt respond.

    i suspect that the air usb doesnt provide enough power so that the dongle are able to work.

    i search and i present a few solucions that havent being tested , but i would like your advice

    1- use a usb power hub in the end mac> 4 meter usb > power hub > dongle

    wich power hub usb is recomended ?

    2- buy this device http://www.bearextender.com/ and use it with a 4 meters usb cable.

    again i contact the website and also i need a power hub usb in the end for the bearextended

    3- what other solucions do i have ?

    4- does the air usb has low power?

    5- the rev B and C they have the same usb power?

    thanks
     

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