The Realtek RTL8812CU is a wireless chipset commonly used in USB WiFi adapters. It supports the 802.11ac standard, providing faster wireless speeds and improved performance compared to earlier standards. The RTL8812CU chipset is known for its dual-band capability, operating on both 2.4GHz and 5GHz frequencies, reducing interference and offering better connectivity options.

USB WiFi adapters based on the RTL8812CU chipset are often compact and suitable for on-the-go use. These adapters typically come with drivers that need to be installed on the operating system to ensure proper functionality. Users appreciate RTL8812CU-based adapters for their reliability and compatibility with various operating systems, including Windows and Linux.