its popular E-Series line of 802.11n Wi-Fi routers to five products covering the gamut of key features including single vs. dual-band support, number of transmit/receive antennas, and 10/100 vs gigabit Ethernet.
It’s range in price from $60 for a bare-bones 2.4GHz model with a 2 x 2 antenna array (the minimum required for Wi-Fi Alliance 802.11n certification) and 4 10/100 ethernet ports, to $180 for the model with simultaneous dual-band support, 2×3 antennas for 2.4GHz operations and 3×3 antennas for 5GHz, and 4 gigabit Ethernet ports.
It has a faster potential speed of the network .Cisco pegs the speed potential for the 2×2 router at up to 300 megabits per second, compared to 450 mbps for the 5GHz network on the high-end E4200, which has a 3 x 3 antenna array.
The routers with gigabit Ethernet support are a better fit for higher-bandwidth wired network tasks-for example, network backups in a small business.
It is the high-end product and it also include USB ports for media servers and storage (although Cisco’s announcement says you may have to wait for a firmware upgrade, due this summer, to enable this functionality).