ASUS RT-AX1800S

Wi-Fi standard: Wi-Fi 6
Speed class: AX1800
Bands: Dual-band
Fastest port: 1 Gbps
Multi-gig ports: 0
Mesh: AiMesh
VPN server: OpenVPN, IPSec, PPTP

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ASUS RT-AX1800S at a glance

Wi-Fi

Wi-Fi 6, dual-band

Up to 1,201 Mbps on 5 GHz.
Wired

Gigabit ports

Fastest port 1 Gbps. 4 LAN ports.
Mesh

Mesh-ready

AiMesh.
Security & VPN

No subscription needed

VPN: OpenVPN and IPSec. Parental controls.
Gaming

Game traffic first

Adaptive QoS, built-in WTFast.

ASUS RT-AX1800S full specifications

Overview

Brand	ASUS
Model	RT-AX1800S
Model number	RT-AX1800S
Type	Wi-Fi Router
Released	2021
Pack options	1-pack
UPC / GTIN	195553207942

Wi-Fi

Wi-Fi 6, dual-band: plenty for most homes on plans under 1 Gbps.

It offers up to 1,201 Mbps on 5 GHz.

Wi-Fi standard	Wi-Fi 6
Speed class	AX1800
Bands	Dual-band
Radios	2.4 GHz, 5 GHz
Total Wi-Fi speed	1,775 Mbps
2.4 GHz speed	574 Mbps
5 GHz speed	1,201 Mbps
Max channel width	80 MHz
Multi-Link Operation (MLO)	No
MLO modes	not applicable
320 MHz on 6 GHz	No
Modulation	1024-QAM
Spatial streams	2x2 (2.4 GHz) + 2x2 (5 GHz)
MU-MIMO	Yes
OFDMA	Yes
Beamforming	Yes

Coverage

Antennas	4
Antenna type	External

Ports

Gigabit ports, which suit internet plans up to 1 Gbps.

4 LAN ports for wired devices. Internet: 1x 1G. Dual-WAN failover keeps you online if the main line drops.

WAN ports	1x 1G
LAN ports	4x 1G
Fastest wired port	1 Gbps
Multi-gig ports	0
SFP ports	None
USB ports	None
Cellular / tethering	None
Configurable WAN/LAN	No
Link aggregation	No
Dual-WAN failover	Yes

Hardware

Modest hardware, fine for basic home use.

Dual-core (4 VPE) processor with 256 MB of RAM.

Processor	Dual-core (4 VPE)
RAM	256 MB
Flash storage	128 MB

Mesh

A standalone Wi-Fi router that can grow into a mesh with AiMesh.

Add a compatible unit later if some rooms are out of reach.

Mesh support	Yes
Mesh ecosystem	AiMesh
Wired backhaul	Yes
Dedicated backhaul band	No

Software & security

Built-in VPN support (OpenVPN and IPSec) covers every device on the network.

Parental controls are built in. Gaming features put game traffic first.

Management	ASUS Router app + ASUSWRT web UI
Web interface	Yes
Firmware	stock only (ASUSWRT)
VPN server	OpenVPN, IPSec, PPTP
VPN client	OpenVPN, L2TP, PPTP
Security suite	AiProtection Classic (Trend Micro)
Subscription	None
Parental controls	Yes
QoS	Yes
Guest network	Yes
PPPoE	Yes
IPv6	Yes
WPA3	Yes
Firewall	Firewall (SPI not stated)
Gaming features	Adaptive QoS, built-in WTFast
Smart home	None
Voice assistants	Alexa

Design & power

An indoor unit for a shelf or desk.

It weighs 390 g. Released in 2021.

Dimensions	230 x 134 x 56 mm
Weight	390 g
Color	Black
Power	12 V DC adapter, 1.5 A

Support

3-year US warranty.

Warranty (US)	3 years

Specs compiled from ASUS's product pages and datasheets, with some identifiers from Open Icecat. Manufacturers revise hardware between versions, so check the version on the box. Spotted an error? Tell us.