You can’t produce professional audio recordings without a decent microphone. There are already plenty of awesome microphones available on the market (RE20, SM7B). The Apogee MIC96K Microphone is designed to work seamlessly with your Windows or Mac machine. It is a cardioid condenser microphone with a digital sample rate of up to 96kHz.
This USB microphone is compatible with iOS devices too. It has a preamp with up to 40dB of gain. Sets you back $199.