BOYA CastMic G40B USB Condenser Microphone Boom Arm Kit with RGB & ENC
- • Recording Quality: Up to 192 kHz / 24-bit high-resolution USB audio
- • Pickup Pattern: Supercardioid condenser microphone with ENC noise reduction
- • Monitoring: 3.5 mm headphone output with real-time monitoring and monitor-mix control
- • RGB Lighting: Dual-zone lighting with 10 selectable RGB effects
- • G40B Kit: Includes boom arm, pop filter, 2 m USB cable and mounting accessories
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- Availability:
- In Stock
- Product Code:
- G40B Bundle
- Brand:
- Boya
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The BOYA CastMic G40B is a USB condenser microphone kit designed for gaming, streaming, podcasting and digital content creation. It combines a supercardioid pickup pattern with recording resolutions up to 192 kHz / 24-bit, ENC noise reduction and integrated RGB lighting.
The G40B Boom Arm Kit expands the CastMic G40 setup with an adjustable boom arm, pop filter and mounting accessories. USB-C digital connectivity supports compatible computers, smartphones and tablets, while a 3.5 mm headphone output provides real-time monitoring directly from the microphone.

Key Features
- 192 kHz / 24-bit Recording: Supports high-resolution digital audio capture for voice, gaming and content creation.
- Supercardioid Pickup: Focuses primarily on sound from the front of the microphone.
- ENC Noise Reduction: Built-in DSP-based environmental noise cancellation provides up to 15 dB of noise suppression.
- RGB Lighting: Dual-zone lighting supports 10 selectable RGB effects.
- Real-Time Monitoring: Integrated 3.5 mm headphone output allows direct audio monitoring.
- Complete Boom Arm Kit: G40B includes the microphone, boom arm, pop filter and mounting accessories.
Technical Specifications
| Component | Specification |
| Brand | BOYA |
| Model | CastMic G40B |
| Product Type | USB Condenser Microphone Boom Arm Kit |
| Microphone Type | Condenser Microphone |
| Polar Pattern | Supercardioid |
| Sample Rates | 192 kHz / 96 kHz / 48 kHz |
| Bit Depth | 16-bit / 24-bit |
| Frequency Response | 20 Hz - 20 kHz |
| Signal-to-Noise Ratio | ≥85 dB |
| Sensitivity | -46 dB ±3 dB |
| Maximum SPL | ≥125 dB SPL |
| Noise Reduction | ENC with DSP, up to 15 dB noise suppression |
| Digital Interface | USB-C |
| Headphone Output | 3.5 mm |
| Monitoring | Real-Time Headphone Monitoring |
| Controls | Gain, Headphone Volume, Monitor Mix, Tap-to-Mute |
| RGB Lighting | Dual-Zone, 10 RGB Effects |
| Power Requirement | 5 V, 127 mA |
| Mounting Thread | 5/8-inch, 3/8-inch |
| Microphone Dimensions | 205 x 124 x 100 mm |
| Microphone Weight | 440 g |
| USB Cable Length | 2 m |
Compatibility & Important Information
- USB-C digital connectivity supports compatible computers, smartphones and tablets.
- BOYA Thailand lists compatibility with Windows 10 or later, macOS 10.15 or later, Android 12.0 or later and iOS 16 or later.
- The 3.5 mm headphone connection is provided for real-time audio monitoring.
- The G40B identifies the Boom Arm Kit configuration; the included microphone itself is the BOYA CastMic G40.
- The microphone supports both 5/8-inch and 3/8-inch mounting threads using the supplied mounting hardware.
Package Contents
- BOYA CastMic G40 Microphone x 1
- Pop Filter x 1
- Boom Arm x 1
- 2 m USB-C to USB-C / USB-A Data Cable x 1
- Mounting Adapter x 1
- 3/8-inch to 5/8-inch Thread Adapter x 1
Q: What is the difference between BOYA CastMic G40 and G40B?
A: G40B is the Boom Arm Kit configuration. It includes the CastMic G40 microphone together with a boom arm, pop filter, USB cable and mounting accessories.
Q: What is the maximum recording resolution?
A: The CastMic G40 supports recording at up to 192 kHz / 24-bit.
Q: What pickup pattern does the microphone use?
A: It uses a supercardioid pickup pattern that focuses primarily on sound arriving from the front.
Q: Does the CastMic G40B have noise reduction?
A: Yes. BOYA specifies ENC digital noise reduction with DSP processing and up to 15 dB of noise suppression.
Q: Can headphones be connected directly to the microphone?
A: Yes. A 3.5 mm headphone output is provided for real-time monitoring.
Q: Can I adjust microphone and headphone levels from the microphone?
A: Yes. The built-in multifunction controls support microphone gain, headphone volume and monitor-mix adjustment.
Q: Which operating systems does the G40B support?
A: BOYA Thailand lists Windows 10 or later, macOS 10.15 or later, Android 12.0 or later and iOS 16 or later.
Q: What is included with the BOYA CastMic G40B?
A: The kit includes the CastMic G40 microphone, pop filter, boom arm, 2 m USB-C to USB-C / USB-A data cable, mounting adapter and 3/8-inch to 5/8-inch thread adapter.















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