ASUS RT-AC42U

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abgn+ac (AC1700)
AC1700 Dual-Band Wi-Fi Gigabit Router
RT-AC42U front.png
Homepage
Wikipedia
WikiDevi.wi-cat.ru
3rd Party Firmware
dd-wrt
Status Unknown
OpenWrt
Status Unknown
Tomato any flavor
Incompatible
Platform
BrandModelRev
ASUS RT-AC42U A1
FCC ID
IC ID
Type
wireless router
CPU1
Qualcomm IPQ4019
CPU1 Type
ARM Cortex-A7
CPU1 Speed
716 MHz ( 4 cores )
Flash1 Chip
Macronix MX30LF1G18AC-TI
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 />
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 />
RAM1 Chip
Nanya NT5CC128M16IP-DI
ETH chip1
Qualcomm IPQ4019
Switch
Qualcomm Atheros QCA8075
Ethernet Port Count
1-1GbE-WAN
4-1GbE-LAN
Wired Standard
IEEE 802.3i/3u/3ab

802dot11 OUI: 10:7B:44 (1 E, 4 W), 38:D5:47 (4 E, 4 W), AC:9E:17 (10 E, 10 W)
Ethernet OUI: 10:7B:44 (1 E, 4 W), 38:D5:47 (4 E, 4 W), AC:9E:17 (10 E, 10 W)

Stock bootloader
U-Boot
Stock FW OS
Linux
Expansion IF types
USB 3.0
USB ports
1
USB Hub Compatible
Untested
Power
12 VDC, 2 A
Connector type
barrel
Serial Port (UART)
yes, 4-pin header
Flags:
Wave2, MU-MIMO, 256QAM

Additional chips
2.4GHz Power Amplifier IC;Richwave;RTC6649EX;75E, 49EX, 4551;2;
5GHz Power Amplifier IC;Richwave;RTC6665;065F, E601, 063;2;

Other

Default SSID: ASUS (99 addl. devices)
, ASUS_5G (46 addl. devices)
Default IP address: 192.168.50.1
the IP 192.168.50.1 is used by 22 additional devices
of which 22 are ASUS devices
Default login user: admin
Default login password: admin
admin:admin credentials used by 1331 additional devices
of which 204 are ASUS devices

Manuf/OEM/ODM
Arcadyan WG911DA AC24-ASU
Retail
FCC approval date 02 August 2017
ASIN B07628HLTM Flag of the United States.svg
multiple uses
Country of manuf China
Radio 1
Chip1
Qualcomm IPQ4019
Wireless interface OUI
10:7B:44,38:D5:47,AC:9E:17
Antenna Connector Type
U.FL
MIMO status
2x2:2
Wireless Standard
IEEE 802.11b/g/n
N-QAM
up to 400 Mbps
802.11n
up to 300 Mbps
802.11g
up to 54 Mbps
802.11b
up to 11 Mbps
WiFi Operating Frequency
2.4 GHz
Radio 2
Chip1
Qualcomm IPQ4019
Wireless interface OUI
10:7B:44,38:D5:47,AC:9E:17
Antenna Connector Type
U.FL
MIMO status
4x4:3
Wireless Standard
IEEE 802.11a/n/ac
802.11ac
up to 1300 Mbps
802.11n
up to 450 Mbps
802.11a
up to 54 Mbps
WiFi Operating Frequency
5 GHz
 FCC ID
ASUS RT-ACRH17MSQ-RTHD00

For a list of all currently documented Qualcomm chipsets with specifications, see Qualcomm.
For a list of all currently documented Qualcomm Atheros (QCA) chipsets with specifications, see Qualcomm Atheros.

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

1300 Mbps - 3SS 5GHz 802.11ac (80MHz chan.),
400 Mbps - 2SS 2.4GHz 802.11n (40MHz chan., 256-QAM) = AC1700 class

Overview

ASUS RT-ACRH17

Links of Interest

Forum threads

Confirms 1.7Gbps 4x4 5GHz link rate

Pictures

Retail Images

Notes

FCC info

"ASUS RT-AC42U REV 1.10" is silkscreened on the board in the FCC photos.

A sticker on the flash chip suggests the Arcadyan WG911DAAC24-ASU model.

See also: Arcadyan and ASUS
Equipment: Wireless-AC1700 Dual Band Gigabit Router
Brand Name: ASUS; Model No.: FCC Report
Default settings are per the FCC Label Sample.

Despite having hardware capable of implementing three radios, this device

appears to only use the 2.4GHz radio of the IPQ4019 configured as 2x2.

User Manual says, "wireless-AC speeds up to 1400Mbps on the 5GHz band

& 300Mbps on the 2.4GHz band concurrently". This is likely inaccurate.

RF Exposure document shows that :

  • two antennas are used for the 2.4 GHz radio (ANT 0+1) and
  • four antennas are used for the 5 GHz radio (ANT 0+1+2+3).

PSU

Power Adapter: 100-240VAC ~50/60 Hz 12VDC/2A

  • Power Adapter: SGE S24B72-120A200-C4
  • S24B11-120A200-Y4
  • Power Adapter: SFE F24W5-120120SPAU
  • Power Adapter: APD WA-24Q12FU

See also