If it's :
Use the official links in Section 2. Do not use DriverPack Solution or similar. Dnub-at1-236b- Driver Download
Here is everything you need to know about finding and installing the correct drivers for this Broadcom-based device. Understanding the DNUB-AT1 (236B) If it's : Use the official links in Section 2
The is a dual-band USB Wi-Fi adapter powered by the Broadcom BCM43236 chipset . To ensure this hardware functions correctly, especially on older operating systems, downloading and installing the specific driver for this chipset is essential. Essential Hardware Specifications especially on older operating systems