RB411A The RB411 series is designed with size and cost in mind. This small device will fit perfectly into small CPE devices, will host your SOHO AP, or even run your wireless backup link. The powerful Atheros CPU gives it the ability to do all of this and more.The RB411 includes RouterOS - the operating system, which will turn this powerful system into a highly sophisticated router, firewall or bandwidth manager. RouterBOARD 411 with Atheros 300Mhz CPU, 32MB RAM, one LAN, one MiniPCI, NAND Storage with RouterOS Level 3 (CPE support)