sudo apt install firmware-misc-nonfree Do not waste hours searching for "OT-WUA900NM driver" specifically – that model number is just a seller’s label. Search for "RT3070 driver" or "MT7601 driver" instead. The hardware is generic, and the chipset is what matters.
If after trying both Ralink and MediaTek drivers the adapter still fails, the device may be defective or use a very obscure Chinese chipset (e.g., Realtek 8188). In that case, a new adapter like the (which uses the same chipset but has official drivers) is a better use of $15. Need more help? Post the Hardware IDs ( VID/PID ) from Device Manager in a tech forum (e.g., Reddit r/techsupport, Tom’s Hardware) – that ensures a 100% accurate driver match. ot-wua900nm driver download
Last Updated: October 2025 Product Type: USB Wireless Network Adapter (likely based on Ralink/MediaTek chipsets) 1. What is the OT-WUA900NM? The OT-WUA900NM is a USB wireless adapter, commonly branded under OEM names like "OT" (possibly Orico or a generic manufacturer). It is designed to add Wi-Fi connectivity to desktops or laptops with broken internal wireless cards. sudo apt install firmware-misc-nonfree Do not waste hours
sudo apt install firmware-ralink Or for MT7601: If after trying both Ralink and MediaTek drivers