HDMI (High-Definition Multimedia Interface) cables are commonly used to transmit high-quality audio and video signals between devices such as TVs, computers, gaming consoles, and Blu-ray players. They support various resolutions, including 4K and 8K, and are equipped with features like Ethernet connectivity and support for high dynamic range (HDR) content. HDMI cables come in different versions, such as Standard, Mini, and Micro, each designed for specific devices and applications.