ASUS RT-AC85P

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abgn+ac (AC2400)
Wireless-AC2400 Dual Band Gigabit Router
Homepage Product page
Support Support page
Downloads Download page
Wikipedia Asus routers
WikiDevi.wi-cat.ru ASUS RT-AC85P
3rd Party Firmware
dd-wrt Status Unknown
OpenWrt Supported
Tomato any flavor Incompatible
Gargoyle Status Unknown
Platform
Brand • Model • Rev ASUS RT-AC85P
Serial number prefix 90IG04X0-MU9G00
FCC ID MSQ-RTACHV00
Board ID 141911620018J
Type wireless router
CPU1 checkY MediaTek MT7621AT
CPU1 Type MIPS 1004Kc
CPU1 Speed 880 MHz ( 2 cores ) 16-bit
Flash1 Chip Macronix MX30LF1G18AC-TI
Flash1 Size 128 MiB 134,217,728 B <br />1,048,576 Kib <br />131,072 KiB <br />1,024 Mib <br />0.125 GiB <br />
RAM1 Size 256 MiB 268,435,456 B <br />2,097,152 Kib <br />262,144 KiB <br />2,048 Mib <br />0.25 GiB <br />
RAM1 Chip Winbond W632GG6KB-15
ETH chip1 MediaTek MT7621AT
Switch MediaTek MT7621AT
Ethernet Port Count 1-1GbE-WAN
4-1GbE-LAN
Wired Standard IEEE 802.3i/3u/3ab

802dot11 OUI: 04:92:26 (-, 2 W)
Ethernet OUI: 04:92:26 (-, 2 W)

Stock bootloader U-Boot
Expansion IF types USB 3.1 (Gen 1)
USB ports 1
USB Hub Compatible Untested
Power 12 VDC, 2.5 A
Connector type barrel
Serial Port (UART) yes, 3.3V TTL, (57600 8N1)
JTAG Port no

Flags:
Wave2, MU-MIMO, 256QAM

Additional chips
5GHz RF Front End Module;Qorvo;QPF4519;Q, QPF4519, 5JUF;4;

Other
Manuf/OEM/ODM Arcadyan WG9116M AC44-ASU
3rd Party Firmware Support OpenWrt • (List | Dev | DLs)
Retail
Availability End of Life
End of Life date 2023
FCC approval date 04 December 2018
ASINs B07M7DZ85C
B07MFQHPWD , 
multiple uses
Country of manuf China
Radio 1
Chip1 MediaTek MT7615N
Wireless interface OUI 04:92:26
Antenna Connector Type U.FL
MIMO status 4x4:4
Wireless Standard IEEE 802.11b/g/n
802.11n up to 600 Mbps
802.11g up to 54 Mbps
802.11b up to 11 Mbps
WiFi Operating Frequency 2.4 GHz
Radio 2
Chip1 MediaTek MT7615N
Wireless interface OUI 04:92:26
Antenna Connector Type U.FL
MIMO status 4x4:4
Wireless Standard IEEE 802.11a/n/ac
802.11ac up to 1733 Mbps
802.11n up to 600 Mbps
802.11a up to 54 Mbps
WiFi Operating Frequency 5 GHz
 FCC ID
ASUS RT-AC1750UMSQ-RTACHV00
ASUS RT-AC2400MSQ-RTACHV00
ASUS RT-AC65PMSQ-RTACHV00
ASUS RT-ACRH26MSQ-RTACHV00
 CPU1 brandRadio1 chip1 brandRadio2 chip1 brand
ASUS RT-AC85PMediaTekMediaTekMediaTek
ASUS RT-AC85UMediaTekMediaTekMediaTek

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.

• 600 Mbps - 4SS 2.4GHz 802.11n (40MHz chan.),
• 1733 Mbps - 4SS 5GHz 802.11ac (80MHz chan.) = AC2400 class

Overview

ASUS RT-AC85P - Wireless-AC2400 Dual Band Wireless Router

According to the Declaration of Model Names document submitted to the FCC,

the following models are all identical with two of them classed as AC2400
(256QAM disabled) and the other two as AC2600:

Links of Interest

Reviews

Flashing

Flashing OpenWrt

Target: ramips
Subtarget: mt7621
Package architecture: mipsel_24kc
Supported Since Commit
Support started version: 21.02.0
Current supported version: 24.10.5
LAN Hardware: MediaTek MT7621AT
WLAN Hardware: 2x MediaTek MT7615N
WLAN Comment: 4x4:4 MIMO on both bands
Installation method(s):
U-Boot TFTP recovery, see git-commit
Recovery method(s):
see git-commit
git • >> 
ramips: add support for Asus RT-AC85P
SoC:	MediaTek MT7621AT dual-core @ 880MHz
RAM:	256M (Winbond W632GG6KB-1)
FLASH:	128MB (Macronix MX30LF1G18AC-TI)
WiFi:	- 2.4GHz MediaTek MT7615N bgn
	- 5GHz MediaTek MT7615N nac
Switch: SoC integrated Gigabit Switch (4 x LAN, 1 x WAN)
USB:	1 x USB 3.1 (Gen 1)
BTN:	Reset, WPS
LED:	- Power (blue)
	- 5Ghz (blue)
	- 2.4GHz (blue)
	- Internet (blue)
	- 4x LAN (blue)
	(LAN/WAN leds are not controllable by GPIOs)
UART: 	UART is present as Pads marked J4 on the PCB.
	3.3V - TX - RX - GND / 57600-8N1
	3.3V is the square pad
MAC:	The MAC address on the router-label matches the MAC of
	the 2.4 GHz WiFi.
	LAN and WAN MAC are identical: MAC_LABEL+4
	5 GHz WiFi MAC: also MAC_LABEL+4

Installation
------------
Via U-Boot tftpd:
Switch on device, within 2s press reset button and keep pressed
until power LED starts blinking slowly.
Upload factory image via tftp put, the router's ip is 192.168.1.1
and expects the client on 192.168.1.75.

The images also work on the Asus RT-AC65P models as tested by Gabor.

Signed-off-by: Birger Koblitz
Tested-by: Gabor Varga
[fixed Asus -> ASUS in DTS]
Signed-off-by: Petr Štetiar

See also

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