The box claims "Up to 650Mbps" (hence the 6506 model number). This is a theoretical maximum combining the 2.4GHz (150Mbps) and 5GHz (433Mbps) bands—a marketing trick. You cannot achieve 650Mbps on a single connection.
In an era where a stable and fast internet connection is non-negotiable, the hardware you use to connect to your network matters. While modern laptops and desktops come with built-in Wi-Fi, many older machines or budget-friendly PCs suffer from poor reception, lag, or complete dropouts. This is where USB Wi-Fi adapters come into play. Edup Ep-6506