ZyXEL GS1900-48: OpenWrt Compatibility Report

The ZyXEL GS1900-48 runs OpenWrt 25.12.2 on the realtek/rtl839x target, and has been supported since 22.03.0. Its No WiFi wireless on the none driver rates fair for open-source driver support (0.50/1.0), installation is rated easy, and it is no longer sold new.

Drivers: Fair (0.50) No WiFi Install: easy

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 GS1900-48, which is no longer sold new. See current alternatives for devices you can still buy today.

Specifications

SoC Realtek RTL8393M
CPU 1 core @ 700 MHz
RAM 128 MB
Flash 16 MB
WiFi generation No WiFi
WLAN driver none
OpenWrt target realtek / rtl839x
Package architecture mips_24kc
Current release 25.12.2
Supported since 22.03.0
Install method GUI OEM, U-Boot TFTP + serial recovery
Install difficulty easy
Power supply 100-240 VAC, 50/60Hz, 0.5A, C13
Device type Wired only
Estimated throughput 87 Mbps
Availability discontinued

Installing OpenWrt on the GS1900-48

Installation on this device is rated easy. You can flash it from the stock web interface without opening the case or using a serial cable. Documented methods: GUI OEM, U-Boot TFTP + serial recovery.

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

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No WiFi Drivers: Good $7995

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