The D-Link DAP-2553 AirPremier N Dual Band PoE Access Point provides businesses with a solution for deploying 802.11n local area networks (LANs). Designed specifcally for business-class environments, such as large or enterprise corporations, this access point provides secure and manageable dual band wireless LAN options for network administrators.Versatile Access Point The DAP-2553 AirPremier N Dual Band PoE Access Point allows network administrators to arrange a highly manageable and extremely robust dual band wireless network. All three detachable dual band antennas supply optimal wireless coverage in either 2.4GHz (802.11g and 802.11n) or 5GHz (802.11a and 802.11n) frequency bands. For advanced installations, this high-speed access point has integrated 802.3af Power over Ethernet (PoE) support, allowing installation of this device in areas where power outlets are not readily available.