Category 6 cable, commonly referred to as Cat 6 or Cat-6, is a cable standard designed to perform at frequencies of up to 250 MHz and offers higher performance for better transmission of data at speeds up to 1000 Mbps. Backwards compatible with the Category 5/5e and Category 3 cable standards. Cat 6 features more stringent specifications for crosstalk and system noise.
Cat 6 has also been adapted to transmit a HDMI signal, successfully transmitting HDMI over extremely long cable runs, i.e. 40-50 meters.