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I'm looking for a mobile broadband adapter on T400 which I can use it in US as well as in rest of the world.



Is Qualcomm UNDP1  better than Ericsson 3507g in terms of networks support, speed etc. ?




For HSDPA the Ericsson and the Gobi 1000 are more or less comparable, but the GOBI1000 additionally supports EVDO.  The compatibily for ThinkPads between GOBI 1000 and 2000 model cards is set by the whitelist in BIOS.


The GOBI 2000 is only supported by the T410/T510 and later series, while the T400/500 supports the GOBI 1000 cards.


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