There are several different kinds of data wire.
Cat5 is the most common in data systems and can efficiently handle data loads of 10Mps – 100Mps.
Cat5e is an enhanced version of Cat5 it can handle data to 1000Mbps or “gigabit” speed. It’s faster than
Cat5 and cuts down on crosstalk or interference between wires.
Cat6 is the next step in data cabling, it can handle data loads up to 10-Gigabit speeds.