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Raspberry Pi X350 USB Audio Board Front
Raspberry Pi X350 USB Audio Board Back
Raspberry Pi X350 USB Audio Board
Raspberry Pi X350 USB Audio Board Accessories


The Raspberry Pi has an on-board audio jack, which is super handy for all kinds of sound effects and speech, just plug and go! However, for when you want better audio for music playback,This X350 USB audio card can greatly improve the sound quality and volume.

You can DIY a external speaker using the 4pin speaker cable (you can found cable in the package box), and control the speaker via the on-board button.

In additonal, you can use it on the desktop computer, you only use one USB cable to connect the desktop computer and X350, and insert earphone into the X350, then you can enjoy the high quality sound.



  • Ideal USB audio solution for Raspberry Pi
  • 48K/44.1KHz Sampling Rate for both Playback and Recording
  • On-board high-sensitivity Electret Condenser Microphones
  • Supports 16 bit ADC input with Microphone Boost
  • High Performance 16 bit audio DAC with Earphone Phone Buffer
  • On-board 3.5mm headphone jack and microphone input jack
  • On-board buttons for speaker volume control and microphone mute
  • On-board LED Indicators for Record Mute Status, Playback and power
  • Compatible with Raspbian without Additional Driver
  • On-board stereo Class-D audio amplifier with high SNR
  • 2x3W Output at 10% THD with a 4Ω Load
  • 2.4W Output at 1% THD with a 4Ω Load
  • 32-Step Up/Down Volume Control from -80dB to 24dB
  • Superior Low Noise 60uV and Minimize Pop/Clip Noise
  • On-board XH2.54 connector for speaker output, power input and speaker mute GPIO control
  • USB bus-powered - does not require external power supply
  • PCB Size 56mm x 56mm

X350 audio player schematic diagram.jpg

Power Supply Requirement

  • Power supply: 5Vdc +/-5% , Powered by Raspberry Pi
  • Speaker output power : Max 2x3W Output at 10% THD with a 4Ω Load
  • Headphone output voltage : 1.25Vrms

Ports & Connectors:

  • USB socket - USB 2.0 type A, 3.5mm audio jack x2
  • Power input connector - XH2.54 3-pin x1
  • Speaker output connector - XH2.54 4-pin x1

Packing List

  • 1 x X350 Board
  • 1 x 4PIN speaker cable (about 30cm length)1
  • 1 x usb connector
  • 1 x install screw pack

User Manual

X350 use CM119A chip from c-media;



1.Is it possible to use both the onboard microphone and an external microphone at the same time (2 audio input channels at the same time)?

Answer: Sorry, it is not possible to use both the onboard microphone and an external microphone at the same time, but if you need to use two microphone, you can consider to use two X350 audio board to stack on and under your raspberry pi to use it.(actually we do not test it, you need to test it yourself, thank you!)

2.How to setup and use X350 board?

Answer: Please refer to here and try it on Raspbian.

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Anonymous user #4

3 months ago
Score 0++

Two Questions:

1. Can you use the X350 audio board to turn a Raspberry Pi 3b into a small PA system, whereby you plug in a microphone into the X350 audio board and the board outputs what you say via speakers?

2. I have the Audacity recording program on my Raspberry Pi 3b. Can I record my voice using a microphone plugged into the X350 audio board using the Audacity program set up on my Raspberry Pi?


3 months ago
Score 0++

Hi friend, 1. The X350 already integrated the audio ampilifier and you can connect it to your speakers directly.

2. Not test it with Audacity recording program yet. but will find time to test later.

Anonymous user #3

4 months ago
Score 0++
How to connect the power wires?


4 months ago
Score 0++

Hello friend,

It is powered by the Raspberry Pi, connect the power supply to Raspberry Pi is ok.

Anonymous user #2

15 months ago
Score 0++
is that Omnidirectional microphone onboard ? could i replace onboard microphone better than now


15 months ago
Score 0++
Hi, sorry, no.We dot not suggest to replace it.

Anonymous user #1

18 months ago
Score 0++
This does not explain how to connect the 5vdc power to the card. Do you use a cable from the raspberry pi's power or do you need an independent power supply? what kind of cable is required for the power supply? What plugs in to the USB connector, is it power supply, if not the headphones or mic. If it is power supply why is there another power supply input connector?


18 months ago
Score 0++
Hello, The X350 and Raspberry Pi is connected by the USB bridge, does not require external power supply for X350, and we upload the X350 board diagram above, please check the details. Best regards, Cindy/Geekworm