Xiaomi MiWiFi 4AC International (R4AC) 100M

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multiple revisions of this device, use caution
abgn+ac (AC1200)
High-Speed Dual Band AC1200 Router
Xiaomi MiWiFi 4A.png
Homepage Product page
WikiDevi.wi-cat.ru Xiaomi Mi Router 4A 100M (R4AC)
3rd Party Firmware
dd-wrt Status Unknown
OpenWrt Supported
Tomato any flavor Incompatible
Gargoyle Status Unknown
Platform
BrandModelRev Xiaomi MiWiFi 4AC International (100M}
Model Part Number R4AC
FCC ID 2AFZZR4AC
Type wireless router
CPU1 checkY MediaTek MT7628DAN
CPU1 Type MIPS 24KEc
CPU1 Speed 575 MHz
Flash1 Chip Brand? Model?
Flash1 Size 16 MiB16,777,216 B <br />131,072 Kib <br />16,384 KiB <br />128 Mib <br />0.0156 GiB <br />
RAM1 Size 64 MiB67,108,864 B <br />524,288 Kib <br />65,536 KiB <br />512 Mib <br />0.0625 GiB <br />
RAM1 Chip Brand? Model?
ETH chip1 MediaTek MT7628DAN
Switch MediaTek MT7628DAN
Ethernet Port Count 1-100MbE-WAN
2-100MbE-LAN
Wired Standard IEEE 802.3i/3u

802dot11 OUI: none specified

Stock bootloader U-Boot
Expansion IF types none specified
Power 12 VDC, 1 A
Serial Port (UART) yes, 3.3V TTL, (115200 8N1)
Other
3rd Party Firmware Support OpenWrt • (List | Dev | DLs)
Radio 1
Chip1 MediaTek MT7628DAN
Wireless interface OUI none specified
Antenna Connector Type none specified
MIMO status 2x2:2
Wireless Standard IEEE 802.11b/g/n
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 MediaTek MT7612EN
Wireless interface OUI none specified
Antenna Connector Type none specified
MIMO status 2x2:2
Wireless Standard IEEE 802.11a/n/ac
802.11ac up to 867 Mbps
802.11n up to 300 Mbps
802.11a up to 54 Mbps
WiFi Operating Frequency 5 GHz
 FCC ID
Xiaomi MiWiFi 4A (100M)2AFZZR4AC
 CPU1 brandRadio1 chip1 brandRadio2 chip1 brand
Xiaomi MiWiFi 4 Pro (R1350)Qualcomm AtherosQualcomm AtherosQualcomm Atheros
Xiaomi MiWiFi 4A (100M)MediaTekMediaTekMediaTek
Xiaomi MiWiFi 4A (R4AG)MediaTekMediaTekMediaTek
Xiaomi MiWiFi 4A v2MediaTekMediaTekMediaTek
Xiaomi MiWiFi 4AC International (R4AC) 100MMediaTekMediaTekMediaTek

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

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

867 Mbps - 2SS 5GHz 802.11ac (80MHz chan.),
300 Mbps - 2SS 2.4GHz 802.11n (40MHz chan.) = AC1200 class

Flashing

Flashing OpenWrt

On the OpenWrt ToH (techdata entry)
On the OpenWrt Wiki
OpenWrt Target: ramips
OpenWrt Subtarget: mt76x8
OpenWrt Package architecture: mipsel_24kc
Support started version: 22.03.0
Current supported version: 24.10.2

Please insert instructions here