DNA Valokuitu Plus EX400: OpenWrt Compatibility Report
The DNA Valokuitu Plus EX400 runs OpenWrt 24.10.5 on the ramips/mt7621 target, and has been supported since 24.10.0. Its WiFi 5 (AC) wireless on the mt76 driver rates good for open-source driver support (0.80/1.0), installation is rated easy, and it is still sold new.
Hardware data and retail listings last checked .
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Specifications
| SoC | MediaTek MT7621AT |
|---|---|
| CPU | 2 cores @ 880 MHz |
| RAM | 256 MB |
| Flash | 256 MB (NAND) |
| Ethernet ports | 2 |
| USB | 1x 2.0 |
| WiFi generation | WiFi 5 (AC) |
| Radios | 2.4GHz: b/g/n · 5GHz: a/n/ac |
| WLAN hardware | MediaTek MT7603, MediaTek MT7615 |
| WLAN driver | mt76 |
| OpenWrt target | ramips / mt7621 |
| Package architecture | mipsel_24kc |
| Current release | 24.10.5 |
| Supported since | 24.10.0 |
| Install method | GUI OEM, U-Boot TFTP + serial recovery |
| Install difficulty | easy |
| Device type | Home router |
| Estimated throughput | 220 Mbps |
| Availability | available |
Installing OpenWrt on the Valokuitu Plus EX400
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.
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