The Linksys WRT55AG contains two built-in wireless radios, one supporting 5 GHz range signals and the other supporting 2.4 GHz. This allows the WRT55AG to manage networks containing a mix of 802.11a and 802.11b/g clients. The WRT55AG offers standard WPA encryption levels up to 152 bit.
Linksys WRT55AG
By Bradley Mitchell, About.com Guide
The Linksys WRT55AG is a dual-band Wi-Fi wireless router supporting both 802.11a and 802.11g networks.
Linksys WRT55AG - Dual-Band Wireless A+G Broadband Router
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