XLR and USB mics can be either dynamic or condenser, though it’s common for USB mics to fall into the latter category.
Whilst XLR and USB tell us how the mic is connected (and what it’s connected to), the terms “condenser” and “dynamic” tell us how the mic is built and how it functions. XLR and USB mics can be either dynamic or condenser, though it’s common for USB mics to fall into the latter category.