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Boosts Speed

OFDMA (Orthogonal Frequency Division Multiple Access) Beamforming: standard-based and universal 4096-QAM high data rate 20/40/80/160 MHz bandwidth

MIMO technology

IEEE 802.11a
IEEE 802.11b
IEEE 802.11g
WiFi 4 (802.11n)
WiFi 5 (802.11ac)
WiFi 6 (802.11ax)
IPv4
IPv6

Buttons

WPS button, Reset button, Power switch

WPS Button, Reset Button

Transmit / Receive

5GHz 2x2
2.4GHz 2x2

MIMO technology
2.4GHz 2x2
5GHz 2x2

Administration

Diagnosis Tools, Feedback System, System Log, New Device Connect Notification, Login Captcha, Connection Diagnosis, Auto Firmware Update

Configuration Backup and Restore
Diagnosis Tools
Feedback System
System Log

Security

AiProtection, VPN, WPA/WPA2/WPA3-Personal, WPA/WPA2-Enterprise, WPS, Let's Encrypt, DNS-over-TLS, Security Scan, Firewall

WPA3-Personal, WPA/WPA2/WPA3-Personal, WPA/WPA2-Enterprise, WPS support
WPS
Let's Encrypt
SSH
Firewall

Traffic Control

Adaptive QoS, • Bandwidth Monitor, • Bandwidth Limiter, Traditional QoS, Traffic Monitor, Traffic Analyzer, • Website History

• Bandwidth Limiter
Traditional QoS
• Maximum Traditional QoS Rule : 32
Traffic Monitor
• Real-time Traffic Monitor
• Wired Traffic Monitor
• Wireless Traffic Monitor

Antenna

Internal antennas x 4

Internal dual-band antenna x 2

LED Indicator

Power x 1

Product Dimensions

140 x 70 x 140 mm

90 x 90 x 85 mm

Router APP

APP: ASUS Router APP

AiProtection

AiProtection Pro, • Router Security Assessment, • Malicious Site Blocking, • Two-Way IPS, • Infected Device Prevention and Blocking

AiProtection Classic
• Malicious Site Blocking
• Infected Device Prevention and Blocking

Parental Control

"Allow you to block access to unwanted websites and apps.", Web & Apps Filters, Time Scheduling, Reward, Parental Control - Safe Browsing, Customized Internet Schedule

"Allow you to block access to unwanted websites and apps."
Customized Internet Schedule

Memory

RAM 512MB , Flash 128MB

128 MB Flash, 256 MB RAM

WAN

Port Forwarding, Port Triggering, DMZ, DDNS

Internet connection Type : PPPoE, PPTP, L2TP, Automatic IP, Static IP
Port Forwarding
Port Triggering
DMZ
DDNS

Operating Mode

Access Point Mode
AiMesh Node Mode
Wireless Router Mode

Power Supply

AC Input : 110V~240V(50~60Hz) DC Output : 12V with max 1.5A current

"AC Input : 110V~240V(50~60Hz)
DC Output : 12 V with max. 1.5 A current"

LAN

DHCP Server, IGMP Snooping, IPTV, Manually Assign IP Address, Wake on LAN (WOL)

DHCP Server
IGMP Snooping
IPTV
Manually Assign IP Address
• Maximum Manually Assign IP Address Rule : 64
Wake on LAN (WOL)

Smart Home

Support Google Assistant

WiFi Data Rate

WiFi 7 (802.11be) (5GHz): up to 2882 Mbps
WiFi 7 (802.11be) (2.4GHz): up to 688 Mbps

802.11a : up to 54 Mbps
802.11b : up to 11 Mbps
802.11g : up to 54 Mbps
WiFi 4 (802.11n) : up to 300 Mbps
WiFi 5 (802.11ac) : up to 867 Mbps
WiFi 6 (802.11ax) (2.4GHz) : up to 574 Mbps
WiFi 6 (802.11ax) (5GHz) : up to 1201 Mbps

Model Name

BD4(W-3-PK)
BD4(W-2-PK)
BD4(W-1-PK)
BD4(B-3-PK)
BD4(B-2-PK)
BD4(B-1-PK)

XD4S (B-2-PK)
XD4S (B-3-PK)
XD4S (B-1-PK)

I/O Ports

2.5G x 2 (WAN/LAN auto detecting)

RJ45 for Gigabits BaseT for WAN/LAN x 1, RJ45 for Gigabits BaseT for LAN x1

AiMesh

AiMesh, • Primary AiMesh Router, • AiMesh Node

AiMesh
• Primary AiMesh Router
• AiMesh Node

Wireless

MU-MIMO, UTF-8 SSID, WiFi MAC Address Filter, Wireless Scheduler, Airtime Fairness, RADIUS Client, Universal Beamforming, Explicit Beamforming

UTF-8 SSID

Guest Network

"The Guest Network provides Internet connection for guests but restricts access to your local network.", Support Guest Network

Support Guest Network
• Maximum Guest Network Rule : 6
Guest Network Connection Time Limit

VPN

Instant Guard, VPN Client L2TP, VPN Client Open VPN, VPN Client PPTP, VPN Client WireGuard, VPN Server IPSec, VPN Server Open VPN, VPN Server PPTP, VPN Server WireGuard, VPN Fusion

VPN Client L2TP
VPN Client Open VPN
VPN Client PPTP
VPN Server IPSec
VPN Server Open VPN
VPN Server PPTP

Package Content

ZenWiFi BD4 RJ45 cable Power adapter Warranty card Quick start guide

‧XD4S
‧RJ45 Ethernet cable
‧Power adapter
‧Quick start guide
‧Warranty card
‧Screw pack

Operating Frequency

5 GHz
2.4 GHz

2.4 G Hz / 5 GHz

Processor

1.5GHz quad-core processor

Product Weight (g)

307 g

Product Segment

AX1800 ultimate AX performance : 1201 Mbps+ 574 Mbps

Remark

Content may vary in different regions and packages.

- The actual transfer speed of USB 3.0, 3.1, 3.2, and/or Type-C will vary depending on many factors including the processing speed of the host device, file attributes and other factors related to system configuration and your operating environment.
- Actual data throughput and WiFi coverage will vary from network conditions and environmental factors, including the volume of network traffic, building material and construction, and network overhead, result in lower actual data throughput and wireless coverage.
- Quoted network speeds and bandwidth based on current IEEE 802.11ac specifications. Actual performance may be affected by network and service provider factors, interface type, and other conditions. Connected devices must be 802.11ac-compatible for best results.
- WPA/WPA2 enterprise is only available on single router, is not available under AiMesh mode.
- When traditional QoS is enabled, there will be limitations due to the actual Internet service bandwidth and different environment, and there may be a risk of speed reduction.
- Due to the different power supply requirements on USB external hard disk and 4G/5G Modem device, to ensure that the external device can be used stably, if the USB external device exceeds the standard USB 2.0 (5V/500mA) and USB 3.1 Gen 1 (5V/900mA) power supply requirements, you need to use it with an independent external power supply.
- If you use the product in conjunction with a third party service, you are responsible for complying with the third party provider's terms and conditions and privacy policy and are also at the risk of such use. ASUS does not provide support or guarantee continuous integration support for products that are not part of ASUS.
- The device is restricted to indoor use only when operating in the 5150-5350 MHz frequency band in certain regions, including the EU, Asia-Pacific countries, Australia, and Canada. Outdoor use in this band may be prohibited or require regulatory approval. Check local regulations before deployment.
- For models with Time machine support, starting with macOS 26 (Tahoe), Time Machine no longer supports creating new backups on USB-connected storage devices. Existing Time Machine drives that were previously configured remain compatible and can continue to be used for backup and restoration.