Cat 6a cable is designed to support frequencies up to 500 MHz and can transmit data at speeds up to 10 Gbps over distances up to 100 meters. This makes it suitable for environments like office buildings where such distances are typical. Cat 6 cable also supports 10 Gbps but only up to 55 meters in favorable crosstalk conditions. Cat 5e is not designed to support 10 Gbps, and Cat 7 is used for even higher frequencies and speeds but is not as commonly used for typical office environments. Cat 5 is an older standard that only supports up to 1 Gbps.