Professional microphone cables are always balanced type with 3 pin XLR connectors at each end.
Semi professional mic cables are often unbalanced with one end fitted with a 3 pin XLR (microphone end) and the other end with a standard jack plug (6.35mm or 1/4").
Not only for microphones
XLR to XLR professional Microphone cables are also used for a wide range of audio connections between mixers, power amps, effects processors, equalizers and powered speaker systems. In all these cases, the connections are referred to as balanced lines.