📄 Product Description – Mi Router 4A is a Dual-Band AC1200 Wi-Fi router designed for smooth home connectivity across 2.4GHz and 5GHz, delivering up to 1,167Mbps theoretical combined wireless speed (300Mbps + 867Mbps). Model: R4AC. It features 4 external high-gain antennas, 64MB memory for stable multi-device use (up to 64 devices under lab conditions), Smart Connect to merge both bands under one SSID, and easy management via web or mobile apps. It also includes security and access controls such as SSID hiding, blacklist/whitelist, and unauthorized access prevention.

⭐ Key Features:
– 🔹 Dual-Band AC1200: up to 1,167Mbps theoretical total (2.4GHz up to 300Mbps + 5GHz up to 867Mbps)
– 🔹 4 external omnidirectional antennas: (2× 2.4GHz up to 5dBi + 2× 5GHz up to 6dBi) for stronger coverage
– 🔹 64MB memory for more stable multi-device connections (up to 64 devices in lab conditions)
– 🔹 Smart Connect: one Wi-Fi name for both bands with automatic band selection on compatible clients
– 🔹 Signal enhancements: integrated PA + LNA for stronger transmission and better reception, plus LDPC on 5GHz for improved anti-interference
– 🔹 Ports: 2× 10/100M LAN (Auto MDI/MDIX) + 1× 10/100M WAN (Auto MDI/MDIX)
– 🔹 OS & management: Mi Wi-Fi ROM (OpenWRT-based) with web / Android / iOS management
– 🔹 Security & controls: WPA-PSK / WPA2-PSK, access control (blacklist/whitelist), SSID hiding, smart unauthorized access prevention
– 🔹 Extra specs: 188×100.5×175mm, natural heat dissipation, 2× LED indicators, 1× reset button, 12V⎓0.6A power supply, operating temp 0–40°C

🎯 Closing Paragraph:
If you want a solid everyday home router with Dual-Band speed, strong antenna coverage, simple app/web management, and practical security controls, Mi Router 4A is a reliable option for multi-device households.

⚠️ Important Note:
Quoted 1,167Mbps speed is theoretical and varies with distance, walls, interference, and client capability. 5GHz is typically faster but shorter-range than 2.4GHz. “Up to 64 devices” is a lab figure and real-world results may differ.