Cat 6a is a type of Ethernet cable designed for high-speed data transmission. It supports frequencies up to 500 MHz and can transmit data at speeds of 10 Gbps over distances of up to 100 meters. This makes it suitable for demanding applications like video streaming and online gaming. The "a" in Cat 6a stands for "augmented," indicating improvements over the earlier Cat 6 standard. It features better shielding to reduce interference and crosstalk, ensuring a more reliable connection. This makes Cat 6a a popular choice for modern networking environments, including offices and data centers.