Specification:1. : Xiaomi2. Model: AC21003. CPU: MT7621A MIPS Dual-band 880MHz4. ROM: 128MB5. Memory: 128MB6. Interface: 3 * LAN, 1 * WAN7. 2.4G WIFI: 2 * 2 ( support IEEE 802.11n, the maximum speed is up to 300Mbps)8. 5G WIFI: 4 * 4 ( support IEEE 802.11ac, the maximum speed is up to 1733Mbps)9. Network Protocols: IEEE 802.11a/ac/b/g/n, IEEE 802.3/3u/3ab10. Wireless Standard: Wireless AC12. 11. Wireless Security: WPA,WPA-PSK,WPA2,WPA2-PSK13. Max. LAN Data Rate: 1000Mbps14. The Wireless Channel: - 2.4GHz Channel: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 - 5GHz Channel:36, 40, 44, 48, 149, 153, 157, 161, 16515. Usage: Home use16. DC Port: 5.5 x 2.117. Gain dBi: 5dBi18. Quantity of Antenna: 4Features:1. Xiaomi Mi Router AC2100 equips a high-performance processor, the MT7621A with 880Mhz frequency combined with 128MB of internal memory.2. Allowing the router to reach the maximum speed 2100Mbps by combining both the old 2,4Ghz band and the most recent 5Ghz band.3. A ne.w technology - Beamforming -This technology allows the router to understand the position of the device, for example a smartphone, and to direct the signal in a more precise and efficient way.4. More stable and faster network with less latency, good ne.ws for the most hardened gamers.5. It arrives with Miwifi ROM -A highly customized operating system based on OpenWRT, which is accessible via Web or app on Android and iOS.6. Built-in netease UU accelerator, low latency, more stable.7. Through 4 4 MIMO realize stable connection, 5GHz band band, give full play to WIFI performance.Package includes:1 x Router1 x Power Adapter( 12V, 1A )1 x Cable1 x User manual