The RB411UAHR has it all, just as the name suggests. It has the popular high-speed CPU, a miniPCI-e slot and a SIM slot for 3G modems, a USB 2.0 port for attaching external storage, a regular miniPCI card slot for 802.11abgn wireless cards, a Ethernet port and a built-in wireless 802.11bg radio (one MMCX connector on board).