The RB411U is a versatile yet very small device. It includes all - a miniPCI
slot, a USB 2.0 port and a miniPCI-E slot for connecting a 3G card. A SIM card
slot for 3G is also present on the RB411U.
RB411U includes RouterOS - the operating system, which can be a router,
firewall, bandwidth manager, a mobile 3G router, and more - all at the same
You can use the USB port to attach a secondary storage device, or a USB 3G
modem. The RB411U mounting holes are in the same location as other RB411
models, so you can easily mount it into any supported outdoor case/antenna.
RouterBOARD 411U with Atheros 300Mhz CPU, 32MB RAM, one LAN, one MiniPCI,
one miniPCI express (for 3G), one USB port, one SIM slot, NAND Storage with
RouterOS Level 4 (AP support)