Since 95% of these adapters use a Realtek chip, Realtek’s official website is your best bet.
The "950M" is a marketing term combining 2.4GHz and theoretical 5GHz speeds (even though this adapter is 2.4GHz only). The maximum actual link speed for 802.11n with one antenna is 150Mbps. This is normal.
If you have lost the mini-CD that came with the adapter, follow these steps to get the correct software:
Method 1: The Hardware ID (The Surefire Way) This is the most reliable method to identify exactly what driver you need. 950m wireless-n mini usb adapter driver model no ot-wua950nm
Method 2: Automatic Windows Update Windows 10 and Windows 11 have extensive driver libraries.
Known issues:
The OT-WUA950nm serves as a classic example of entry-level connectivity hardware designed to bring older desktops and laptops into the modern Wi-Fi era. While many modern devices come equipped with built-in wireless cards, older machines often lack this capability or suffer from outdated hardware that struggles with current router speeds. Since 95% of these adapters use a Realtek
This adapter acts as a bridge, plugging directly into a USB port to provide a quick and cost-effective upgrade to Wireless-N (802.11n) standards.
WARNING: Avoid "driver updater" software and third-party EXE files from unknown forums. Many of these contain adware or malware. Stick to the methods below.
If you physically have the adapter and access to another PC with internet: Run the setup and restart your PC
No official driver from Realtek for modern macOS (10.15+).
Alternative: Use HoRNDIS (no – that’s Android tethering) or Wireless USB Adapter Clover driver.
Legacy support: OS X 10.6–10.11 can use Realtek RTL8192CU driver from Realtek’s legacy site (v5.0.1).
Note: As of macOS 11 (Big Sur) and later, no stable driver exists. The adapter is effectively obsolete on Apple Silicon Macs.