Will this board supply power back to the Raspberry Pi through the 50 pin connector?

Yes, the board has a step down converter (MP2403) that powers the Pi through the GPIO connector (which is 40 pins...) I power mine with a 19v laptop supply and it works very well.

How does this interface with the pi? i2c/spi something else?

hi，Glad to answer your question：The Amp works with all Raspberry Pi models with the 40-pin GPIO connector，uses IIC PINS， you can see the detail of the TAS5713PHPR

Will not be used with pi. need to know which pins accept i2s input. can i download user manual?

Manual can be found here http://www.inno-maker.com/product/hifi-amp-hat/ and it does list the pin usage.

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RPI HiFI AMP Hat

Product ID: 77675633

Details

Audio output mode
Stereo
Brand
innomaker
Compatible devices
Raspberry Pi 4
Hardware interface
PCI Express x1
Platform
Linux

⚡Up to 90% Efficiency

🎧Supports 4Ω Speakers

🔊25W Class-D Power

€ 79.79

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Description

🎶 Elevate your Raspberry Pi sound game—because your ears deserve the best!

EFFICIENT POWERFUL - High 90% efficiency and 25W output drive 4Ω speakers with rich, immersive audio.
PLUG PLAY HI FI UPGRADE - Seamlessly connects via 40-pin GPIO—no soldering or cables needed.
AUDIOPHILE GRADE AMPLIFICATION - Powered by TAS5713 delivering crystal-clear, low-distortion stereo sound.
BROAD SOFTWARE ECOSYSTEM SUPPORT - Compatible with OSMC, Volumio, RuneAudio, and all major Pi music players.
UNIVERSAL RASPBERRY PI COMPATIBILITY - Works flawlessly with Pi 5, 4, 3B+, Zero, and more for ultimate flexibility.

The InnoMaker RPI HiFi AMP HAT is a 25W Class-D amplifier module designed for Raspberry Pi models 5, 4, 3B+, and Zero series. Featuring the TAS5713 chip, it delivers high-fidelity, low-distortion stereo audio with up to 90% efficiency. This plug-and-play expansion board supports a wide range of software platforms and drives 4Ω speakers, making it the perfect upgrade for audiophiles and tech-savvy creators seeking premium sound without hassle.

Specifications

ASIN	B07CZZ95B9
Audio Output Mode	Stereo
Best Sellers Rank	86,912 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 485 in Hi-Fi Amplifiers
Brand Name	innomaker
Compatible Devices	Raspberry Pi 4, Raspberry Pi Zero, Raspberry Pi Zero W, Raspberry Pi 3B, Raspberry Pi 3B+
Country of Origin	China
Customer Reviews	4.3 4.3 out of 5 stars (211)
Hardware Connectivity	PCI Express x1
Hardware Platform	Raspberry Pi
Manufacturer	innomaker
Manufacturer Part Number	RPI-HIFI-AMP
Maximum Sample Rate	48 KHz
Model Number	RPI-HIFI-AMP
Platform	Linux
Signal-to-Noise Ratio	100 dB
Surround Sound Channel Configuration	2.0
UPC	606462078979
Unit Count	1.0 count

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€ 79.79

Duties & taxes included

In stock

Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Austria.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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