Buffalo LS421DE: OpenWrt Compatibility Report

Buffalo LS421DE router
Image: OpenWrt Table of Hardware, CC BY-SA 4.0

The Buffalo LS421DE runs OpenWrt 24.10.5 on the mvebu/cortexa9 target, and has been supported since 21.02.0. Its No WiFi wireless on the none driver rates good for open-source driver support (0.75/1.0), installation is rated moderate, and it is no longer sold new.

Drivers: Good (0.75) 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 Buffalo LS421DE, which is no longer sold new. See current alternatives for devices you can still buy today.

Specifications

SoC Marvell Armada 370 88F6707
CPU 1 core @ 1200 MHz
RAM 512 MB
Flash 512 MB (NAND)
Ethernet ports 1
USB 1x 2.0, 1x 3.0
WiFi generation No WiFi
WLAN driver none
OpenWrt target mvebu / cortexa9
Package architecture arm_cortex-a9_vfpv3-d16
Current release 24.10.5
Supported since 21.02.0
Install method U-Boot TFTP + serial recovery
Install difficulty moderate
Power supply 12 VDC, 4.0A
Device type Wired only
Estimated throughput 210 Mbps
Availability discontinued

Installing OpenWrt on the LS421DE

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 + serial recovery.

Official OpenWrt device page for the LS421DE

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

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