The Wireless N900 Dual Band Gigabit Cloud Router (DIR-855L) provides ultra fast wireless speed - up to 900Mbps - for flawless HD video streaming and video chatting. With groundbreaking mydlink Cloud Services, you can monitor your home network from anywhere on your Smartphone or Tablet with our free mobile apps. See websites that are being visited, block unwanted devices and receive automatic email alerts when unauthorized connections are attempted. The DIR-855L is also fully compatible with all of your existing wireless products and boasts a high-powered amplifier to ensure wall-to-wall coverage.