ZyXEL Keenetic Extra II: OpenWrt Compatibility Report

The ZyXEL Keenetic Extra II runs OpenWrt 25.12.2 on the ramips/mt76x8 target, and has been supported since 25.12.0. Its WiFi 5 (AC) wireless on the mt76 driver rates fair for open-source driver support (0.65/1.0), installation is rated moderate, and it is no longer sold new.

Drivers: Fair (0.65) WiFi 5 (AC) Install: moderate

Hardware data and retail listings last checked .

Discontinued. This model is no longer sold new, so this page is kept as a reference for people who already own one. See current alternatives.

Where to buy

We have no current retail listing for the ZyXEL Keenetic Extra II, which is no longer sold new. See current alternatives for devices you can still buy today.

Specifications

SoC MediaTek MT7628AN
CPU 1 core @ 580 MHz
RAM 128 MB
Flash 32 MB
Ethernet ports 5
USB 1x 2.0
WiFi generation WiFi 5 (AC)
Radios 2.4GHz: b/g/n · 5GHz: a/n/ac
WLAN hardware MediaTek MT7628AN, MediaTek MT7612EN
WLAN driver mt76
OpenWrt target ramips / mt76x8
Package architecture mipsel_24kc
Current release 25.12.2
Supported since 25.12.0
Install method U-Boot TFTP recovery, see git-commit
Install difficulty moderate
Device type Home router
Estimated throughput 72 Mbps
Availability discontinued

Installing OpenWrt on the Keenetic Extra II

Installation on this device is rated moderate. Expect to use a recovery mode, TFTP or a vendor tool rather than a plain web upload. Documented methods: U-Boot TFTP recovery, see git-commit.

For TFTP, rename -factory.bin image to kextra2_recovery.bin

Flashing third-party firmware can brick a router and usually voids the warranty. Always check that the firmware image matches your exact hardware version.

Still sold and well supported

Ruckus R500

WiFi 5 (AC) Drivers: Excellent $173

MikroTik RB962UiGS-5HacT2HnT (hAP ac)

WiFi 5 (AC) Drivers: Excellent $115

Ubiquiti UniFi UK-Ultra

WiFi 5 (AC) Drivers: Excellent $100

Not sure which fits? Take the 60-second quiz.