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.‎