D-Link Xtreme N DIR-855 is a router / access point is compatible with the final 802.11n standard for wireless networks. The D-Link device is one of the most advanced and sophisticated access points available in the market is able to operate simultaneously on the frequencies of 2.4 GHz (typical of standard 802.11 b / g) and 5 GHz provided by the new 802.11 n standard . The result is a higher bandwidth, less interference and also the ability to customize the routing of data packets. In essence, it is possible to separate the wireless network depending on the applications used: for example, you can route packets of the VoIP traffic video / audio over 5GHz and leave the 2.4GHz band for Internet browsing, instant messaging programs and e-mail.
D-Link Xtreme N DIR-855 has three high-gain antennas are compatible with MIMO technology provided by the 802.11 n standard, which can be oriented to suit your needs: it even allows you to install the unit on the wall. Outwardly D-Link Xtreme N DIR-855 features a sleek, houses on top of an OLED display that graphically summarizes the operating parameters and provides access to many of the functions of the device. On the back of D-Link Xtreme N DIR-855 connectors are four RJ-45 LAN, a WAN port for connecting to an ADSL modem or router and a USB port. The performance of D-Link Xtreme N DIR-855 are very good: the device is able to achieve a total bandwidth of 600 Mbps derived from the sum 300 + 300 Mbps of bandwidth on each of the theoretical frequencies.