MediaTek MT7921 (Filogic 320) Wi-Fi 6 adapters
A widely deployed MediaTek Wi-Fi 6 / Wi-Fi 6E chipset family, branded Filogic 320, found in PCIe M.2 cards, USB dongles, and SDIO modules used in laptops, mini PCs, and industrial IoT modules from roughly 2021 onward. It is the radio behind many mainstream consumer Wi-Fi cards and embedded modules like the Ezurio Sona MT320 and Tungsten700 system-on-module.
recommendation
It should stay because the hardware is still being sold new in 2025, with DigiKey listing the MT7921LEN as active and module vendors like Ezurio shipping fresh designs around it. Upstream maintenance is clearly ongoing too: a January 2026 patch series with stability and mutex fixes and a July 2025 linux-firmware refresh both target this chip, and there is no sign of a deprecation thread.
repository signals
sources
- spinics.net
January 15, 2026 patch series targets mt7921 with stability and mutex fixes, showing ongoing upstream maintenance rather than removal.
- lkml.org
July 3, 2025 linux-firmware update for MT7921 WiFi devices shows the platform still receives firmware refreshes.
- digikey.com
DigiKey lists the MT7921LEN/B as Active and in stock, indicating new-channel availability of MT7921 silicon.
- mouser.com
Mouser announced and shipped Ezurio Sona MT320 modules built on the MT7921 for industrial IoT applications, indicating ongoing embedded deployments.
- digikey.com
DigiKey product highlight says Ezurio's Tungsten700 SOM uses a radio based on MediaTek Filogic 320 (MT7921), confirming current integration into shipping embedded compute products.
codex reasoning notes (technical)
Local `exec_command` inspection (`rg --files`, `sed`) confirmed this directory is real mt7921 WLAN driver code with PCIe/SDIO/USB variants in Kconfig. `lei` was unavailable, so upstream activity was checked via `web.search_query`; cited mailing-list URLs were obtained there and spot-checked with `web.open`/`web.find`. Removal-focused web searches surfaced no deprecation/removal thread, while 2025-2026 results showed active fixes and firmware updates. Deployment evidence came from distributor/vendor pages obtained via `web.search_query` and verified with `web.find`; those pages show MT7921 silicon/modules remain active in embedded and component sales channels, so this is not an obsolescent legacy-only driver.