Raspberry Pi X400 Multifunctional Expansion Board


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SKU: 815866
  1. Built in High quality Class-D stereo audio amplifier (TI TPA3118D2)
  2. AMP can be enabled / disabled via jumper
  3. 3.5mm stereo audio jack
  4. Built in High quality audio headphone amplifier (TI TPA6133A)


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Category: Raspberry Pi Hats

This Raspberry Pi X400 Multifunctional Expansion Board Raspberry Pi 3 Model B+(Plus)/3B Music Player has been updated to the latest V3.0 Version on November 23rd. The X400 audio expansion board has been redesigned by accepting many customer feedback from all over the world. Now it has much better performance than the previous X400 V2.0 version.

It is available to use an extra power switch to control the X400 V3.0 music player and Raspberry Pi board via the PH2.0 4PIN PWR SW port, but please remember to remove the PWR jumper when connect the external power switch to control power.


  1. Full-HD audio – up to 24-bit/192kHz playback
  2. Audiophile TI Burr-Brown 32-bit/384kHz DAC (TI PCM5122)
  3. Class-leading audio; 112db SNR, and THD of 0.0019%
  4. Built-in High-quality Class-D stereo audio amplifier (TI TPA3118D2)
  5. Up to 2×30W Into an 8-Ω BTL Load at 24Vdc
  6. Capable of driving 4 Ohm speakers (also works with higher impedance speakers)
  7. Built-in high-quality audio headphone amplifier (TI TPA6133A)
  8. Uses the Texas Instruments ultra-low-noise voltage regulator (output noise< 10μVRMS)
  9. Uses the Texas Instruments high-efficiency step-down DC converter (up to 95%)
  10. 6V~26Vdc converted to 5.1V, 3A to power the Raspberry Pi
  11. Uses the genuine ALPS RK163 series potentiometer for smooth volume adjustment
  12. Built-in high-quality IR sensor (Vishay -the world’s leading supplier of infrared receivers)
  13. Onboard RCA connectors
  14. Onboard 3.5mm stereo headphone jack
  15. Onboard speaker & power screw terminals
  16. Onboard 4pin PH2.0 connector allowing to connect an external lighted power switch to control power
  17. Onboard gold-plated high-current DC power jack (5.5×2.5mm)

Package Includes:

1 x Raspberry Pi X400 Multifunctional Expansion Board

1 x Set of brass standoffs and screws

SKU: 815866 Category:
Operating Voltage (VDC):

6 ~ 26


LRCK – IO19, BCK – IO18, DATA – IO21, IR – IO26, AMP mute – IO22

Analog Audio Output Level


Headphone Max Output Power

142mW at 16Ω

Amplifier Max Output Power

2×30W at 8Ω BTL Load at 24Vdc

Resolution/Sampling Rate

pto 24bit / 192KHz (Raspberry Pi I2S)

Length (mm):


Width (mm):


Height (mm):


Weight (g):


Shipping Weight 0.078 kg
Shipping Dimensions 11 × 10 × 5 cm
15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects. Replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

TPA3116D2 Datasheet

TPA6133A2 Datasheet

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Country Of Origin: China