Highlights
Alluminum alloy housing
Qualcomm IPQ8064 Dual Core 880MHz processor
4×4 multi-user 802.11ac MIMO router, supports up to 2600 Mbps transfer speeds
4 high-gain PCB array antennas
Built-in surveillance-class 1 TB hard drive
Automatically back up all your devices, supports Time Machine
Automatically syncs with Dropbox
Integrates with Sonos audio system
Specification
General
Brand: Xiaomi
CPU: IPQ8064 
ROM: 256M SLC Nand Flash
2.4G WiFi: 4*4(support IEEE 802.11N, 800Mbps max)
5G WiFi: 4*4 (support IEEE 802.11AC, 1733Mbps max)
Antenna: 4 PCS
Heat dissipating system: Natural heat dissipation
Material: Metal
Color: Black
Size: 195*145.6*66mm (Total hight: 208.33mm)
Weight: 1522.2g
Interfaces
USB 3.0 slot: 1 x DC output (5V/1A)
Lan port: 3 (10/100/1000M Auto MDI/MDIX)
WAN port: 1 (10/100/1000M Auto MDI/MDIX)
LED indicators: 3 (Red/Blue/Yellow)
Button: 1 x Reset button
1 x Sleep/wake button
DC input: 1
Antenna
Dual bands: 2.4GHz / 5GHz
Wireless channels:
2.4GHz Channel: 1,2,3,4,5,6,7,8,9,10,11,12,13
5GHz Channel: 149,153,157,161,165
5GHz DFS Channel: 36,40,44,48,52,56,60,64
Modulation mode:
11b: DSSS: DBPSK(1Mbps),DQPSK(2Mbps),
CCK(5.5/11Mbps)
11a/g: OFDM:BPSK(6/9Mbps),
QPSK(12/18Mbps),16QAM(24/36Mbps),
64QAM(48/54Mbps)
11n: MIMO-OFDM:BPSK,QPSK,16QAM,64QAM. 
Rate: MCS0~MCS15
11ac: MIMO-OFDM:BPSK,
QPSK,16QAM,64QAM,256QAM
Rate: MCS0~MCS9
Receiving sensitivity:
11Mbps:≤-90dBm,54 Mbps:≤-72dBm,
HT20 MCS7:≤-69dBm,
HT40 MCS7:≤-66dBm,
VHT20 MCS8:≤-65dBm,
VHT40 MCS9:≤-60dBm,
VHT80 MCS9:≤-58 dBm
Software
Operating system: MiWiFi ROM (Supports Web, Android, iOS, Windows, OS X)
Wireless security: WPA-PSK/WPA2-PSK encryption, Wireless access control (black and white list), SSID hiding
Protocol standards: IEEE 802.11a/b/g/n/ac, IEEE 802.3/3u
Approval standards: GB9254-2008 YD/T993-1998 GB4943.1-2011
Working environment:
Operating temperature: 0-40°C
Working humidity: 10%-90%RH
Storage temperature : -40-70°C
Storage humidity: 5%-90%RH
Power: 36W
Package Contents
1 x Xiaomi WiFi Router HD, 1 x Charger (12V/3A), 1 x User Manual