Mi Router 4A AC1200 Router

Mi Router 4A AC1200 Dual Band Router

The Mi Router 4A is designed for users who need a stable dual-band Wi-Fi router for home browsing, streaming, gaming, smart devices, and everyday internet use.

Its strongest selling point is not only the 1167Mbps theoretical speed. The real value is the combination of dual-band Wi-Fi, 4 external antennas, 64MB memory for stable multi-device connections, app control, parental controls, and unauthorized access alerts.

Key Features

• AC1200 dual-band Wi-Fi router
• Up to 1167Mbps theoretical wireless speed
• 2.4GHz and 5GHz dual-band connection
• 4 external omnidirectional antennas
• 64MB memory for stable device connectivity
• Supports up to 64 connected devices under test conditions
• Smart Connect support
• Integrated signal amplifier
• LDPC error correction on 5GHz band
• Mi WiFi app remote control
• Unauthorized access alerts
• Parental control features
• Device management and speed limit control
• Wi-Fi optimization tools
• Healthy mode to schedule Wi-Fi off time

Wi-Fi Performance

AC1200 Dual-Band Speed

The router supports up to 1167Mbps theoretical wireless speed, combining 300Mbps on 2.4GHz and 867Mbps on 5GHz.

2.4GHz Band

The 2.4GHz band provides better wall penetration and wider coverage, making it useful for rooms farther from the router.

5GHz Band

The 5GHz band supports faster speeds with less interference, making it better for HD streaming, online gaming, and high-speed browsing.

Smart Connect

One Wi-Fi Name

Smart Connect combines the 2.4GHz and 5GHz bands under one Wi-Fi name.

Real Buyer Benefit

Users do not need to manually choose between networks. Compatible devices can automatically connect to the more suitable band.

Signal Coverage

4 External Antennas

The 4 omnidirectional antennas help improve signal strength and coverage across the home.

Integrated Signal Amplifier

The wireless chipset includes PA and LNA support to improve signal transmission power and reception sensitivity, helping extend Wi-Fi coverage and wall penetration.

Stable Multi-Device Use

64MB Memory

The router includes 64MB memory to help maintain stable data transmission and device connectivity.

Device Capacity

Supports stable connection for up to 64 devices under test conditions.

This makes it suitable for homes with phones, laptops, tablets, smart TVs, cameras, speakers, and smart-home devices.

App Control & Security

Mi WiFi App

The Mi WiFi app allows users to manage the router remotely, check connected devices, optimize Wi-Fi, and control access.

Unauthorized Access Prevention

When an unknown device connects, the app can send an alert so the user can block it.

Device Management

Users can control how long devices stay connected and limit speeds to reduce congestion.

Parental Control

Online Time Management

Parents can manage how long children’s devices can stay online.

Website Access Control

The router can help control which websites connected devices can access.

Reliability & Cooling

Dual Cooling Fin Heat Sinks

The internal cooling structure helps reduce chip temperature and improve system stability during use.

LDPC Error Correction

The 5GHz band supports LDPC error correction to improve anti-interference performance and transmission stability.

Technical Specifications

Brand

Xiaomi

Product Type

Dual-band Wi-Fi router

Model

Mi Router 4A

Wireless Standard

AC1200

Maximum Wireless Speed

Up to 1167Mbps theoretical speed

2.4GHz Speed

Up to 300Mbps

5GHz Speed

Up to 867Mbps

Antennas

4 external omnidirectional antennas

Memory

64MB

Device Capacity

Up to 64 devices under test conditions

App Support

Mi WiFi app

Smart Features

Smart Connect, Wi-Fi optimization, parental control, device management, unauthorized access prevention