ASUS RT-AX1800S v2

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multiple revisions of this device, use caution
abgn+ac+ax (AX1800)
AX1800 Dual Band Wi-Fi 6 Router
Wikipedia Asus routers
3rd Party Firmware
dd-wrt Status Unknown
OpenWrt Supported
Tomato any flavor Incompatible
Gargoyle Status Unknown
Platform
BrandModelRev ASUS RT-AX1800S v2
FCC ID (fcc.io) none specified
FCC ID (fcc.report) none specified
Type wireless router
CPU1 checkY MediaTek MT7981B
CPU1 Type ARM Cortex-A53
CPU1 Speed 1.3 GHz ( 2 cores ) 64-bit
Flash1 Chip Winbond W25N01KVZEIR
Flash1 Size 128 MiB134,217,728 B <br />1,048,576 Kib <br />131,072 KiB <br />1,024 Mib <br />0.125 GiB <br /> (SPI NAND)
RAM1 Size 256 MiB268,435,456 B <br />2,097,152 Kib <br />262,144 KiB <br />2,048 Mib <br />0.25 GiB <br /> (DDR3L)
RAM1 Chip Winbond W632GU6NB-09
ETH chip1 MediaTek MT7981B
Switch MediaTek MT7531AE
Ethernet Port Count 1-1GbE-WAN
4-1GbE-LAN
Wired Standard IEEE 802.3i/3u/3ab

802dot11 OUI: none specified

Stock bootloader U-Boot
Expansion IF types none specified
Power 12 VDC, 1.5 A
Connector type barrel
Serial Port (UART) yes, 3.3V TTL, (115200 8N1)
Other
3rd Party Firmware Support OpenWrt • (List | Dev | DLs)
Radio 1
Chip1 MediaTek MT7981B
Chip2 MediaTek MT7976DAN
Wireless interface OUI none specified
Antenna Connector Type none specified
MIMO status 2x2:2
Wireless Standard IEEE 802.11b/g/n/ax
802.11ax up to 574 Mbps
802.11n up to 300 Mbps
802.11g up to 54 Mbps
802.11b up to 11 Mbps
802.11a up to 54 Mbps
WiFi Operating Frequency 2.4 GHz
Radio 2
Chip1 MediaTek MT7981B
Chip2 MediaTek MT7976DAN
Wireless interface OUI none specified
Antenna Connector Type MHF4
MIMO status 2x2:2
Wireless Standard IEEE 802.11a/n/ac/ax
802.11ax up to 1201 Mbps
802.11ac up to 867 Mbps
802.11n up to 300 Mbps
802.11a up to 54 Mbps
WiFi Operating Frequency 5 GHz
 CPU1 brandRadio1 chip1 brandRadio2 chip1 brand
ASUS RT-AX1800BroadcomBroadcomBroadcom
ASUS RT-AX1800SMediaTekMediaTekMediaTek
ASUS RT-AX1800S v2MediaTekMediaTekMediaTek
ASUS RT-AX1800UMediaTekMediaTekMediaTek

For a list of all currently documented MediaTek chipsets with specifications, see MediaTek.

For a list of all currently documented ASUS devices with specifications, see ASUS.

1201 Mbps - 2SS 5GHz 802.11ax (80MHz chan., 1024-QAM)
574 Mbps - 2SS 2.4GHz 802.11ax (40MHz chan., 256-QAM) = AX1800 class

Flashing

Flashing OpenWrt

Target: mediatek
Subtarget: filogic
Package architecture: aarch64_cortex-a53
Supported Since Commit
Support started version: 25.12.0
Current supported version: snapshot
LAN Hardware: MediaTek MT7531AE
WLAN Hardware: MediaTek MT7981B, Mediatek MT7976DAN
WLAN Comment: MIMO 2x2:2 on both bands
Installation method(s):
see git-commit
Recovery method(s):
see git-commit
Comment:
Multiple models with identicle hardware and firmware images: RT-AX57M / RT-AX54HP V2 / RT-AX1800HP V2 / RT-AX1800S V2 / RT-AX3000S

https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=fafb36f865ce7406085f970adad36ff85ea860d9

Please insert instructions here