Xiaomi 4A Gigabit Edition Smart Router


The Mi Router 4A supports Smart Connect, offering 2.4GHz and 5GHz bands under one Wi-Fi name, No more confusion over which Wi-Fi network to connect to 2.4GHz offers better performance through walls, while 5GHz provides higher speeds The optimal frequency band is automatically selected by a dual-band terminal.


This High-Speed Dual Band AC1200 Router Features
  • 4 external antennas
  • Large 64 MB memory for stable connection of 64 devices*
  • Control remotely via app
  • Unauthorized access prevention
  • Parental Control



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  • Dimensions – 188 mm x 100.5 mm x 175 mm
  • Product color – White
  • Processor – MT7628DA
  • ROM – 16MB
  • Internal memory – 64MB
  • 2.4GHz Wi-Fi – 2×2 (supports the IEEE 802.11n protocol, maximum possible speed of 300Mbps)
  • 5GHz Wi-Fi – 2×2 (supports the IEEE 802.11ac protocol, maximum possible speed of 867Mbps)
  • Product antennas – 4 external omnidirectional antennas (two 2.4GHz antennas with maximum gain of 5dBi; two 5GHz antennas with maximum gain of 6dBi)
  • Product heat dissipation – Natural heat dissipation
  • Total interfaces – Two 10/100M self-adaptive LAN ports (Auto MDI/MDIX) One 10/100M self-adaptive WAN port (Auto MDI/MDIX)
  • LED indicator lights – 2
  • System reset buttons – 1
  • Power input interface – 1
  • Protocol standards – IEEE 802.11a/b/g/n/ac, IEEE 802.3/3u
  • Certification standards – GB9254-2008 YD/T993-1998 GB4943.1-2011
  • Warranty information – 1 year whole device warranty

Wireless specifications

– Dual band – 2.4GHz and 5GHz
– Modulation
  • 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 set: MCS0 to MCS15
  • 11ac: MIMO-OFDM: BPSK, QPSK, 16QAM, 64QAM, 256QAM. Rate set: MCS0 to MCS9 (supports 2 streams)
– WIFI transmission power
  • CE EIRP:
  • <20dBm(2.4GHz)
  • <23dBm(5GHz)

Software specifications

  • Operating system –  Mi Wi-Fi ROM intelligent router operating system based on a highly customized version of OpenWRT
  • Wireless security –  WPA-PSK/WPA-PSK2 encryption, wireless access control (blacklist and whitelist), SSID hiding, smart unauthorized access prevention
  • Management Application – Supports web, Android, and iOS

Product accessories

  • 1 x user manual (includes warranty card)
  • 1 x product power supply (12V/0.6A)

Operating environment

  • Operating temperature: 0–40°C
  • Operating humidity – 10%–90% RH (no condensation)
  • Storage temperature – -40–70°C
  • Storage humidity: 5%–90% RH (no condensation)



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