HDMI cables, or High-Definition Multimedia Interface cables, are used to connect devices like televisions, computers, and gaming consoles to transmit high-quality audio and video signals. They allow you to enjoy clear images and rich sound without needing multiple cables, making setup simple and neat. These cables come in various types, such as standard, mini, and micro, to fit different devices. Most modern electronics support HDMI, making it a popular choice for home entertainment systems. With HDMI cables, you can easily connect your Blu-ray player or streaming device to your TV for an enhanced viewing experience.