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ASUSWi-Fi 7 mesh system

ASUS ZenWiFi BD4

from$129.993 pack sizes

ASUS ZenWiFi BD4
Image: ASUS

Key capabilities

OpenWrt

No support found. Checked against OpenWrt's own Table of Hardware, which carries no qualifying row for this model. That is a weaker statement than "this router cannot run OpenWrt" and a much stronger one than silence.

Checked 2026-08-06. How every router here was checked.

Pack sizes

  • 1-pack$129.99
  • 2-pack$229.99$115.00 per unit4,900 sqft
  • 3-pack$299.99$100.00 per unit6,500 sqft

Specifications

Wireless

Standard
Wi-Fi 7
Bands
Dual-band
Fastest band
2,882 Mbps
All bands combined
3,570 Mbps

Connectivity

Uplink
Ethernet
Internet port
2.5 Gbps
Wired ports
2× 2.5 Gigabit
Port map

Hardware & physical

Form
Mesh system
Coverage
Up to 6,500 sqft (3-pack)
Dimensions
140 × 70 × 140 mm (1,372 cm³)
Power
DC power adapter
Model number
BD4

Manufacturer details

Processor
1.5GHz quad-core processor
Memory
512 MB
Storage
128 MB
Power
AC 110-240V input, 12V/1.5A DC output
Antennas per unit
4

Radios

BandMax linkStreamsChannel width
2.4 GHz688 Mbps2×240 MHz
5 GHz2,882 Mbps2×2160 MHz

All features · 21

VPN

Firmware

  • Automatic firmware updates

Wi-Fi features

  • Multi-Link Operation (MLO)
    What is Multi-Link Operation (MLO)?

    Worth comparing29 of 79 listed here

    A Wi-Fi 7 device uses two bands at the same time over one connection, instead of picking one and living with it.

    Look at instead: whether your phone and laptop are Wi-Fi 7 — nothing older can use this

    Full entry →
  • OFDMA
    What is OFDMA?

    Table stakes50 of 79 listed here

    Splits a channel into smaller slices so several devices are served in the same instant instead of taking turns.

    Look at instead: streams per radio and channel width — those set the ceiling OFDMA divides up

    Full entry →
  • MU-MIMO
    What is MU-MIMO?

    Table stakes46 of 79 listed here

    Lets the router hold separate conversations with several devices at once using different antenna streams.

    Look at instead: the stream count on each radio — a 4×4 radio has twice the streams of a 2×2 to hand out

    Full entry →
  • Beamforming
    What is Beamforming?

    Table stakes37 of 79 listed here

    Shapes the signal toward where a device actually is, rather than radiating evenly in every direction like a bare bulb.

    Look at instead: where you physically put the router — placement beats every antenna trick on this list

    Full entry →
  • 160 MHz channels
    What is 160 MHz channels?

    Table stakes47 of 79 listed here

    A double-width channel that roughly doubles throughput when the airwaves are clear enough to sustain it.

    Look at instead: whether the band has room for it — on 5 GHz that almost always means DFS

    Full entry →

Networking

  • QoS
  • Dynamic DNS
  • Access point mode

Security

  • WPA3
  • Built-in threat protection
  • DNS over TLS

Management

  • Parental controls
  • Guest network
  • Mobile app management
  • Traffic monitoring