Kloofvreter
Honorary Master
It has neither 3G nor ADSL modem built-in. However RJ45 socket works in dual - WAN or LAN mode, so if you have ADSL modem it will perform routing for this interface as well (the same as for USB 3G modem). So you can have two Internet connections (not necessary simultaneously).
I like RJ45 feature, its very universal - for any occasion.
What I meant it, you can plug your 3G modem in, and it will connect and provide Internet access like that. No ADSL interface.