Features:
- 1 x Gigabit WAN port, 3 x Gigabit LAN ports, easily meet the fiber broadband of 100M and above access requirements
- 2-core 4-thread CPU,  MT7621A 880MHz main frequency, fast internet access and fluent internet surfing
- Integrated signal amplifier, wider coverage and faster transmission distance
- 128MB large memory, support 128 terminal devices connection
- Intelligent error correction algorithm to improve weak signal
- Support MIWiFi APP, manage your child's online time and content, protect your child's Internet security
- Set the device's networkable time and the range of URLs allowed to access
- 4 x 4 MIMO realize stable connection
APP Connection:
1. Search and download the APP “Mi Wi-Fi” on Google Play or App Store.
2. Powering the router, and open the WiFi (on the phone) to connect the Xiaomi Router 4A.
3. 1）Create a Mi account then sign in your account;
    2）Follow the promotes to operation, click ”Dial-up access " to input your network account and the password;
    3）Click “More Options", finish the primary base station (set up a new network name and password).  
4. Open the APP, complete your WiFi setting.  
Specifications
Brand: Xiaomi
Model: AC2100
Type: Router
Interface: WAN/LAN
Router Connectivity Type: Wireless
Speed of Ethernet Port: 1000Mbps
Wireless Standard: Wireless AC,Wireless G,Wireless N
WiFi Network Frequency: 2.4GHz,5GHz
LAN Ports: 3 ports
Max. LAN Data Rate: 1000Mbps
Features: Gigabit
Usage: Gaming,Home use
Be suitable for: Mobile,Pad,PC,Phone
DC Port: Yes
Gain dBi: 5dBi
LED Light: 2
System Reset Button: 1
Quantity of Antenna: 4
Language: Chinese
Hardware:
Processor: MT7621A MIPS Dual Core 880MHz
ROM: 128Mb
Memory: 128Mb
Dual frequency 2.4GHz and 5GHz
Interface: 3 * LAN, 1 * WAN
2.4G WIFI: 2 * 2 ( support IEEE 802.11n, the maximum speed is up to 300Mbps)
5G WIFI: 4 * 4 ( support IEEE 802.11ac, the maximum speed is up to 1733Mbps)
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, 165
Protocol standard: IEEE 802.11a/b/g/n/ac, IEEE 802.3/3u/3ab
Wireless security: WPA-PSK/WPA2-PSK encryption, wireless access control ( black and white list), SSID hiding, intelligent network
Manage APPs: support Web, Android, iOS
Working environment temperature: 0 - 40 Deg.C
Working humidity: 10 - 90 percent RH ( non-condensing )
Storage temperature: -40 - 70 Deg.C
Storage humidity: 5 - 90 percent RH ( non-condensing )
Product weight: Approx.0.6000 kg
Package weight: Approx. 1.0000 kg
Product size: Approx. 12.00 x 12.00 x 21.30cm / 4.72 x 4.72 x 7.87 in
Package size: Approx. 15.00 x 15.00 x 25.00 cm / 5.91 x 5.91 x 9.84 in
Packing List:
1 * Router
1 * Network Cable
1 * Power Adapter(220V）
1 * Chinese Manual