The DI-774 operates seamlessly and simultaneously in both the 2.4GHz and 5GHz frequency spectrums supporting the 802.11b and the newer, faster 802.11a and 802.11g wireless standards. For offices, schools or public hotspots that already use 802.11b devices, the DI-774 is a great way to expand an existing network and enable even more users to communicate with one another, access data and the Internet. Now, you can have a router that will compliment your existing network and protect the investment you made when you provided the convenience of wireless networking.