What This Product DoesTP-LINK’s Archer D5 AC1200 Wireless Dual Band Gigabit ADSL2+ Modem Router is a combined wired/wireless network connection device with integrated wireless router and ADSL modem, reducing hassle of configuration and saving space. Featuring a variety of features and rich functionality, Archer D5 is the perfect hub of your home or business network.1.2Gbps Concurrent Dual Band - More Bandwidth, Less InterferenceWith 867Mbps wireless speeds over the crystal clear 5GHz band and 300Mbps over the 2.4GHz band, Archer D5 offers you the flexibility of two dedicated networks and ensures amazing wireless performance. Simple tasks such as sending e-mails or web browsing can be handled by the 2.4GHz band while bandwidth intensive tasks like online gaming or HD video streaming can be processed by the 5GHz band – all at the same time.External Antennas and High Power Amplifiers - Fully Expanded CoverageWith detachable dual band external antennas combined with higher quality antenna technology, you can experience excellent wireless performance with high speed and stability. Furthermore, its high power amplifiers provide stronger signals in every direction with better coverage. This provides you with incredible wireless coverage and reliability from anywhere in your large home or office.