I-O Data ETG3-R: OpenWrt Compatibility Report

The I-O Data ETG3-R runs OpenWrt 25.12.2 on the ath79/generic target, and has been supported since 19.07.0. Its No WiFi wireless on the none driver rates fair for open-source driver support (0.50/1.0), installation is rated moderate, and it is no longer sold new.

Drivers: Fair (0.50) No WiFi 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 I-O Data ETG3-R, which is no longer sold new. See current alternatives for devices you can still buy today.

Specifications

SoC Atheros AR9342
CPU 1 core @ 560 MHz
RAM 64 MB
Flash 8 MB
Ethernet ports 5
WiFi generation No WiFi
WLAN driver none
OpenWrt target ath79 / generic
Package architecture mips_24kc
Current release 25.12.2
Supported since 19.07.0
Install method see git-commit
Install difficulty moderate
Power supply 5VDC, 0.9A via barrel
Device type Home router
Estimated throughput 70 Mbps
Availability discontinued

Installing OpenWrt on the ETG3-R

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: see git-commit.

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

Deciso DEC740

No WiFi Drivers: Good

Mellanox Spectrum SN3420

No WiFi Drivers: Good $24974

Mellanox Spectrum SN2700

No WiFi Drivers: Good $7995

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