There are several types of data cables used for networking, including Cat5, Cat5e, Cat6, Cat6a, and Cat7 cables. Each cable type has different specifications regarding speed, bandwidth, frequency range, and distance capabilities. For example, Cat5e supports speeds up to 1 Gbps up to 100 meters, while Cat6a can support 10 Gbps up to 55 meters with a bandwidth up to 500MHz. The appropriate cable type to use depends on factors like bandwidth needs, environment, and budget.