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Expansion Shield x400 for Raspberry Pi B+/2B/3B

SKU: DFR0449

$54.06 AUD, inc GST
$49.15 AUD, exc GST

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Expansion Shield x400 for Raspberry Pi B+/2B/3B
54.06 AUD

SKU: DFR0449

$54.06 AUD, inc GST
$49.15 AUD, exc GST
1 reviews 0 5 5


  • $6.95 Standard (2-4 days, tracked)
  • $8.95 Express (Overnight*, tracked)
  • $3 Economy Post* (3-7 days, no tracking)
  • FREE Pickup (Newcastle only)

Shipping costs may increase for heavy products or large orders.

Exact shipping can be calculated on the view cart page.

*Conditions apply, see shipping tab below.


The X400 Expansion Shield is a highly cost-effective audio hat which fits on the GPIO of the Raspberry Pi Model B+, Raspberry Pi 2 Model B and Raspberry Pi 3 Model B. It uses i2S interface audio solution and supports 24-bit /192KHz high quality sound. It is compatible with other audio equipment via RCA lotus socket. It includes a built-in high fidelity headphone amplifier, where you can plug in a 3.5mm audio jack directly.

The shield has two digital amplifier output ports, up to 2 x30w speakers can be directly connected. Use this hat to make your Raspberry Pi in to a lossless audio player or a network radio. We recommend using an OS image such as Volumio, RuneAudio, PiMusicBox etc.

Note: Raspberry Pi is not included in the box.


  • Input Voltage
    • 6V to 24V DC converted to 5V, 3A via step-down DC/DC converter to power the Raspberry Pi 
  • Audio  
    • Full-HD audio
    • up to 24-bit/192kHz playback  
    • Class leading audio; 112db SNR, and THD of 0.0019%  
    • Audiophile TI Burr Brown 32-bit/384kHz DAC (TI PCM5122)
    • Uses the digital I2S audio signals to reduce CPU load over USB audio solutions  
    • Integrated hardware volume control  - Mute can be enabled / disabled via jumper
    • Built in High quality audio headphone amplifier (TI TPA6133A)
    • Earphone AMP can be enabled / disabled via jumper
    • Built in high quality Class-D stereo audio amplifier (TI TPA3118D2)  
    • Up to 2 x 20W into 4 ohm
    • AMP can be enabled/disabled via jumper  
    • Phono/RCA connectors 
    • 3.5mm stereo audio jack
    • Speaker terminals
  • Wireless  
    • Built in IR sensor (38KHz)
  • Misc  
    • Power output socket  
    • DIP switch to remove connection from RPi’s pin header
    • Directly connected on top of the Raspberry Pi using the board GPIO header pins 
    • No wiring or soldering is required 
    • Pin mappings identical to 40-pin header of the R-Pi in order to support existing expansion boards 
    • Suitable for Raspberry Pi Model B+, 2 Model B and 3 Model B
  • Dimensions
    • 85 x 56mm (Same footprint as Raspberry Pi) 

Parts List

  • X400 Expansion Board x1
  • Nylon Spacers (M3 x 20mm) x4
  • Nylon Screws (M3 x 6mm) x8
  • Jumper Wires x2
Documentation and Resources:

Product Comments

Customer Reviews

  1. Review by Dan verified purchaser

    Awesome quality, very surprised for the price. Paired with a pair of bookshelf speakers and a 20V PSU it sounds lovely. Working great as a wireless Spotify speaker. (Posted on 3/07/2018)

Exact shipping can be calculated on the view cart page (no login required).

We deliver Australia-wide with these options:

  • $3 for Small Items (3-7 days, not tracked, only available on selected small items)
  • $6.95 for Standard Post (2-4 days, tracked)
  • $8.95 for Express Post (Overnight for Australia Post Next Day Network, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region (only after we email you to notify your order is ready)

International Orders - the following rates are for New Zealand and will vary for other countries:

  • $11.49 for Pack and Track (3+ days, tracked)
  • $16.50 for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount might increment based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
NSW, 2289

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

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