- Dual-band WiFi 7 speeds up to 3600 Mbps with MLO and 4K-QAM
- ASUS AiMesh technology boosts coverage up to 6500 sq. ft. (3-pack) and easy extendibility with compatible ASUS routers for seamless and secure whole home WiFi
- Four internal antennas and four high-power front-end modules eliminate WiFi dead zones
- 24/7 end-to-end protection with commercial-grade AiProtection Pro and advanced VPNs
- IoT Network, parental controls & VPN easy setup on multiple devices with Smart Home Master SSIDs
- Dual 2.5G Ethernet ports with auto detection
- Quad-core 1.5 GHz CPU and robust cooling
ASUS ZenWiFi BD4 Worry-Free Smart Home Mesh
The ASUS ZenWiFi series advances your ever-evolving smart home with worry-free WiFi. The ASUS ZenWiFi BD4 raises the bar for whole-home mesh with WiFi 7 and next-gen AiMesh technology. It delivers blazing-fast dual-band speeds up to 3.6 Gbps and unleashes superior WiFi performance. Along with ultra-high-speed dual 2.5 Gigabit auto-detect ports and a suite of advanced network and security technologies, this mesh WiFi system is ready to future-proof your smart home
DESIGN
The Pinnacle of WiFi
ASUS ZenWiFi BD4 embodies our unwavering commitment to developing incredible in-house WiFi and network technologies. Seamlessly connect to your family and friends within a worry-free connected experience.
“ASUS [ZenWiFi]…scores exceptionally high for mesh coverage, Wi-Fi speed, and network management.”
- 2023 PCMag Readers’ Choice Award
IEEE 802.11be
WiFi 7 Powering Premium Mesh
The ZenWiFi BD4 boasts cutting-edge WiFi 7 technology. This superior dual-band mesh system unleashes the full potential of WiFi 7 with wired backhaul options. Enjoy a next-generation connected experience for home entertainment and cloud computing, including 8K streaming, HDR gaming, content creation and AI.
Learn more about WiFi 7 technology >- Dual-band up to 3600 Mbps
- Up to 20% More Efficient* With 4K-QAM *Compared to WiFi 6
- Dual-band Multi-Link With 2.4 GHz + 5 GHz
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Blazing-fast Wireless Connection
The ZenWiFi BD4 unleashes blazing-fast dual-band WiFi 7 speeds up to 3600 Mbps, ensuring seamless streaming, gaming, and compatibility with your legacy IoT devices.
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Comprehensive MLO Support
Multi-Link Operation (MLO) enables buffering-free connection by intelligently combining and switching between the 2.4 GHz and 5 GHz bands. The ZenWiFi BD4 is built to be future-proof with all WiFi 7 devices, regardless of the MLO mode they use.*
*Supported MLO modes and bands may vary by device. Please refer to device specifications for details.
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Advanced 160 MHz Channels
The ZenWiFi BD4 supports ultrawide 160 MHz channels, delivering ultrafast data transfer rates, reduced latency, and enhanced performance for a smoother network experience.
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Efficient 4K-QAM Transmission
Compared to 1024-QAM with WiFi 6/6E, 4096-QAM allows each signal to more densely incorporate larger amounts of data, delivering up to 20%* more efficient data transmission.
*Compared to WiFi 6/6E 1024-QAM.
MESH TECHNOLOGY
WiFi 7 Powering AiMesh
ZenWiFi BD4 harnesses the power of WiFi 7 and next-gen AiMesh technology to deliver wider coverage, a more stable and secure network and a feature-rich network experience – all under one network name for your entire smart home.
Learn more about AiMesh technology >- A 3-pack covers up to 6,500 sq. ft. 5+ Rooms
- A 2-pack coverage up to 4,900 sq. ft. 4+ Rooms
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*For optimal performance with multiple ASUS AiMesh extendable routers, set the one with the highest specifications as the main router.
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Scalable 2.5G Connectivity
Experience lightning-fast speeds even in homes with thick walls. With dual 2.5G WAN/LAN ports, you can extend the 2.5 Gbps wired backhaul between mesh nodes for strong, seamless connectivity, ensuring your entire home network stays connected and ready for the future.
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Values Beyond Extension
AiMesh goes beyond just extending coverage or seamless roaming. It works with all compatible ASUS routers, offering easy management, advanced security and smart home features across your entire network.
Learn more
Performance
Engineered for Always-Connected Home
ASUS engineering shines in ZenWiFi BD4's robust design, delivering superior coverage and
Unrivaled Coverage and Reliability
With four internal antennas and four high-power front-end modules, the ZenWiFi BD4 eliminates WiFi dead zones, delivering consistent coverage in all directions. Efficient heat dissipation also maintains cool and quiet operation for enhanced performance and long-lasting reliability.
- 4 Internal Antennas
- 4 High-power Front-end Modules
- Heatsink with Nanocarbon Layer
Next-gen Powerhouse
Fueled by a powerful CPU, the ZenWiFi BD4 delivers exceptional processing power. This unleashes advanced features, optimizing your network for smoother 8K streaming, HDR gaming and an enhanced AI
Next-Gen Connectivity
Embrace the future of 2.5G home networking with the ZenWiFi BD4.
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Dual 2.5G Ports
The ZenWiFi BD4 includes dual 2.5G Ethernet ports, ready for next-gen entertainment, home studios and ultra-fast 2.5 Gbps ethernet backhaul.
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Versatile WAN Options
Both 2.5G Ethernet ports can function as either WAN or LAN ports; simply plug and connect.
Network Security
Safeguard Everyone and Every Connected Device
In a connected world, your home network is the gateway to your digital life. Gain complete visibility and control over your home network, defend against emerging threats, and ensure seamless protection for all your connected devices and personal data. ASUS Network Security provides peace of mind with robust router protection, device protection, and
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Comprehensive Triple-level Protection
Robust router safeguards with commercial-grade cloud protection powered by Trend Micro™ shield your smart home network, while feature-packed controls and management empower every member of your household to manage their connected devices securely for ever-evolving cybersecurity landscape. Additionally, advanced encrypted connection protects your online activity and data, keeping them private and secure.
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Top-Notch Security Within Reach
The intuitive ASUSWRT interface and mobile router app let you easily monitor, control and manage your network security, including advanced features such as VPNs.
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Extendable
Custom Network AiMesh technology ensures your whole-home WiFi remains protected under the same SSID. The new Smart Home Master unlocks even more advanced settings for further customization.
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One-Stop Solutions
ASUS partners with trusted security and VPN solution providers to offer one-stop security solutions with optimal network performance.
User Friendly
Router Protection Made Easy
ASUS Network Security includes convenient network tools such as a one-tap Security Scans for diagnosing network health, fine-tuned settings options, and on-the-go notifications.
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Instant Notifications
Receive instant notifications for new device connections to block unknown devices from accessing your network or group new devices into a user profile.
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Auto Security Updates
Secure your router with integrated defense measures that continuously update and scan to protect against malware and emerging threats.
Network Segmentation
Feature-Packed Smart Home Master SSIDs
ASUS Smart Home Master subnetwork management streamlines the process of creating or connecting to dedicated SSIDs with advanced features like parental controls and VPNs.
Learn more about the Smart Home Master Network >-
IoT Network
Set up and manage all your IoT devices under one secure SSID to provide enhanced security with commercial-grade protection.
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Kid’s Network
Create a dedicated SSID just for the kids to easily manage their screen time without needing to configure each device individually.
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VPN Network
Connect to your preferred VPN service with a single click through a dedicated subnetwork.
Parental Controls
Safer, Smarter Family Protection
Advanced family protection and parental controls empower you to nurture a balanced digital life for you and your kids, all without subscriptions.
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Internet Activity Dashboard
Monitor your kids' Internet usage through a comprehensive graphical dashboard. See their online time, data consumption, and device-specific activity at a glance.
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Preset Age-Level Profiles
Preset profiles automatically filter inappropriate content and set screen time schedules, making it easy to apply settings based on your children's ages.
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Flexible Time Scheduling
Define online and offline hours for each child, ensuring balanced screen time and fostering healthy digital habits. Reward good behavior with extra online time as positive reinforcement.
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Safe Browsing
Customize protection for individual users or a group of devices with safety filters to secure your online activities.
VPN
Stay Protected Anywhere, Anytime
Enjoy secure browsing, data privacy, remote access – extensive ASUS VPN capabilities handle it all. The ZenWiFi BD4 supports versatile VPN protocols, including the cutting-edge WireGuard® for lightning-fast speeds and optimal performance.
Learn more about ASUS VPNs >
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WireGuard®
(via Ethernet) -
OpenVPN
(via Ethernet)
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Instant Guard
When away from home, ASUS Instant Guard gives you a one-tap secure VPN*, and you can even easily share it with your family and friends through a URL link.
How to set it up?*The router must have a public IPv4 WAN IP address to use
ASUS Instant Guard. 
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Multiple VPN Connection
Connect to multiple encrypted VPN tunnels simultaneously while maintaining the Internet access without interruption.
ASUS Router App
Three-Step Easy Setup, Powerful Controls
The intuitive interface of the ASUS Router mobile app makes managing your network simple on your smartphone. Simply follow the on-screen directions, and you will be up and running in no time!
Learn more about the ASUS Router app >
