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Featuring high-quality microphone preamps and high-resolution 24-bit / 192 kHz recording, this USB audio interface for PC and Mac ensures your sound remains clear and true to the original performance. Whether you're interviewing, podcasting, presenting, or livestreaming, capture exceptional audio anywhere with the BOYA Caster X1.

Powerful Preamps for Any Mic

Enjoy warm, clear sound for podcasts or voice-over work. With an XLR input offering 48V phantom power and a 70 dB gain range, you can use both condenser mics and dynamic mics that aren't overly gain-hungry. Balanced ¼-inch outputs let you connect your favorite speakers, while a high-power headphone amplifier drives professional high-impedance headphones for echo-free monitoring.

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Press It. Record. Done.

When recording, it's crucial to set your input levels correctly. Too loud, and you risk clipping your inputs and creating distortion; too quiet, and you may end up boosting your audio, introducing more noise into the signal. With Auto Gain, there's no more guesswork. Using advanced peak analysis, it automatically adjusts your gain to the optimal level. Just press the button, perform your recording, and let Auto Gain handle the rest—quick, easy, and perfect for focusing on your creativity.

Know Your Levels at a Glance

The multifunction control knob with an RGB meter gives you instant visual feedback when your voice level is perfect. The dynamic light bar displays real-time sound waves, microphone gain,and headphone monitoring level at a glance. You can also customize the light's brightness and colors in BOYA Central PC to match your setup. With it's one knob control system, the Caster X1 offers incredible fast and precise adjustments, which gives you the ability to dial and gain levels with pinpoint accuracy down to the decibel control.

How to use?
BOYA Caster X1|USB Audio Interface & Mixer

BOYA Caster X1|USB Audio Interface & Mixer

BOYA Audio

Your Personal Control Center

Within the BOYA Central PC, you can control the volume of each software and audio source independently. Simply select an input channel and use the control wheel to adjust its gain, or switch to output mode to set the overall output level. The monitor mix control lets you blend microphone input with computer audio, so you can hear exactly what you need in your headphones with ultra-low latency, perfect for real-time monitoring.

From the intuitive BOYA Central PC on your computer, you can change indicator colors, add virtual channels, and enable features like EQ and anti-clipping, all without ever leaving your workstation.

Get Connected and Create

It works right out of the box with Windows and Mac over a simple USB connection, and it's just as easy to set up with mobile devices for recording on the road thanks to its compact design. The XLR input supports professional condenser microphones, while the 3.5mm line-in lets you bring in audio from a phone, tablet, or second PC without any software hassle. Portable recording has never been easier.

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Meet the BOYA CastMic G40, designed to elevate every match and stream. Bold RGB lighting energizes your gaming setup, giving every moment immersive visual impact. With noise cancellation, ultra-focused voice capture, easy USB plug-and-play, and intuitive onboard controls, the BOYA CastMic G40 keeps your communication clear and your gameplay fully in control—from casual sessions to clutch moments.


  • 9 dynamic RGB effects and sound-reactive lighting in single RGB mode delivers customizable flair for gaming setups.
  • Environmental noise cancellation up to -15 dB blocks 90% background noise.
  • Supports multiple high-resolution formats including 192k/24-bit for finer vocal detail and clear sound.
  • Adjust vocal / background mix via knob for better gaming or calls.
  • One-tap control to mute audio, enable noise reduction, and switch lighting effects.
  • Delivers clear, focused audio with an 85dB SNR, 50Hz–20kHz response, 125dB SPL handling, and a supercardioid pickup pattern.
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