Прошивка Padavan. Ставиться так же последняя OpenWRT.
https://4pda.to/forum/index.php?showtopic=957085&st=0

- спойлер
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CPU1: MediaTek MT7621AT (880 MHz, 2 cores)
FLA1: 32 MiB (Winbond 25Q256JVFQ)
RAM1: 512 MiB (Nanya NT5CC256M16EP-EK)
Expansion IFs: USB 3.0
USB ports: 1
Serial: yes, 4-pin header
WI1 chip1: MediaTek MT7603EN
WI1 802dot11 protocols: bgn
WI1 MIMO config: 2x2:2
WI1 antenna connector: U.FL
WI2 chip1: MediaTek MT7612EN
WI2 802dot11 protocols: an+ac
WI2 MIMO config: 2x2:2
WI2 antenna connector: U.FL
ETH chip1: MediaTek MT7621AT
Switch: MediaTek MT7621AT
LAN speed: 10/100/1000
LAN ports: 4
WAN speed: 10/100/1000
WAN ports: 1