This is a D’Addario (aka Planet Waves) Classic Series balanced XLR cable for microphones and professional audio.

D’Addario Classic Series cables deliver undeniable quality with an unbelievable price tag. These cables have pure, oxygen-free copper core conductors with a naturally low-capacitance which transfers a pristine signal, with 95% spiral shielding. The XLR connectors at each end are designed to be fuss-free and durable with a moulded collar. Just plug ’n’ play!