Ubiquiti EdgeRouter X (ER-X): OpenWrt Compatibility Report
The Ubiquiti EdgeRouter X (ER-X) runs OpenWrt 25.12.2 on the ramips/mt7621 target, and has been supported since 17.01.0. 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 still sold new.
Hardware data and retail listings last checked .
Where to buy
- Buy $150
- Ubiquiti Store official US store, ER-X $59, 'No restock date yet' 2026-08-09 Currently out of stock $59
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Specifications
| SoC | MediaTek MT7621AT |
|---|---|
| CPU | 2 cores @ 880 MHz |
| RAM | 256 MB |
| Flash | 256 MB (NAND) |
| Ethernet ports | 5 |
| WiFi generation | No WiFi |
| WLAN hardware | - |
| WLAN driver | none |
| OpenWrt target | ramips / mt7621 |
| Package architecture | mipsel_24kc |
| Current release | 25.12.2 |
| Supported since | 17.01.0 |
| Install method | U-Boot TFTP + serial recovery, see devicepage |
| Install difficulty | moderate |
| Power supply | 12 VDC, 0.5 A or Passive 24V PoE |
| Device type | Home router |
| Estimated throughput | 220 Mbps |
| Availability | available |
Installing OpenWrt on the EdgeRouter X (ER-X)
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, see devicepage.
Official OpenWrt device page for the EdgeRouter X (ER-X)
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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