The Xiaomi MI 4A AC1200 Dual Band Router has single Core CPU with a dual core CPU and four threads. the frequency of a single core can reach 880MHz. Solid performance easily supports gigabit network and dual-band WiFi data transmission. It also has Wireless Dual Band, that supports two frequency bands of 2.4GHz and 5GHz. The maximum speed it can reach is 1167Mbps. The 2.4GHz band supports longer and better coverage and throughput through the wall. The 5GHz band uses 802.11ac technology. Less interference and high rate. Watch HD video and play the game without problems. The 4 high gain external omni-directional antennas greatly improves the performance of the transmission and does a great job in several complex environments. It has smart appliances that allows for more devices to connect and provides stable connection. Calculation of LDCP error correction of 5GHz frequency support. Strengthen anti-interference performance. Increase the WiFi signal and improve the transmission speed. It comes with 3 Month Warranty (Must Claim With Box & All Accessories).