# Raspberry Pi 4 USB-C power supply: specs

> Official Raspberry Pi mains-powered USB-C power supply with a captive cable, made for Raspberry Pi 4 Model B and Raspberry Pi 400.

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Official Raspberry Pi mains-powered USB-C power supply with a captive cable, made for Raspberry Pi 4 Model B and Raspberry Pi 400.

Every value cites its sourcePinout not published

[Buy on Compoden](https://compoden.com/products/raspberry-pi-4-official-power-supply-5v-3a-usb-c-compoden)

## Specs

| Spec | Value | Source |
|---|---|---|
| Output voltage | +5.1 V DC | source Raspberry Pi 15W USB-C Power Supply product brief (Apr 2024), Specification, Output, p.3 |
| Nominal load current | 3.0 A (minimum load 0.0 A) | source Raspberry Pi 15W USB-C Power Supply product brief (Apr 2024), Specification, Output, p.3 |
| Maximum power | 15.0 W | source Raspberry Pi 15W USB-C Power Supply product brief (Apr 2024), Specification, Output, p.3 |
| Output connector and cable | USB Type-C, captive 1.5 m 18 AWG cable | source Raspberry Pi 15W USB-C Power Supply product brief (Apr 2024), Specification, Output, p.3 |
| Input voltage range | 100-240 V AC rated (96-264 V AC operating), 50/60 Hz +/-3 Hz, 0.5 A maximum | source Raspberry Pi 15W USB-C Power Supply product brief (Apr 2024), Specification, Input, p.3 |
| Protection | Short circuit, overcurrent and over temperature protection | source Raspberry Pi 15W USB-C Power Supply product brief (Apr 2024), Specification, Output, p.3 |
| Operating ambient temperature | 0-40 C | source Raspberry Pi 15W USB-C Power Supply product brief (Apr 2024), Environment, p.4 |
| Intended for | Raspberry Pi 4 Model B and Raspberry Pi 400 | source Raspberry Pi 15W USB-C Power Supply product brief (Apr 2024), Overview, p.2 |

## Power

| | Value | Source |
|---|---|---|
| Supply | 100-240 V AC mains input; +5.1 V DC output at 3.0 A nominal | source Raspberry Pi 15W USB-C Power Supply product brief (Apr 2024), Specification, p.3 |
| Current | 3.0 A nominal load current (output) | source Raspberry Pi 15W USB-C Power Supply product brief (Apr 2024), Specification, p.3 |

## Pinout
We don't publish a pin table for this part: no official source we could verify gives one. Check the labels printed on your module, and see the notes below.

Captive USB-C cable; no pin table is published.

## Build with it
Project ideas for the Raspberry Pi 4 USB-C power supply. Each link opens Soldr with the prompt filled in; Soldr assigns the pins, checks power and shows how to wire every part.

- [Raspberry Pi 4 home dashboard](https://app.soldr.ai/?prompt=I%20want%20to%20build%20a%20home%20dashboard%20with%20a%20Raspberry%20Pi%204%2C%20a%207%20inch%20touch%20display%20and%20the%20official%20power%20supply): The supply is made for the Pi 4 and gives 5.1 V at 3.0 A nominal. Plug it into a wall socket only; do not open it or touch its mains side.
- [Pi 4 time-lapse camera](https://app.soldr.ai/?prompt=I%20want%20to%20build%20a%20plant%20growth%20time-lapse%20camera%20with%20a%20Raspberry%20Pi%204%2C%20a%20camera%20module%20and%20the%20official%20power%20supply): A steady supply matters for unattended runs. Point the camera at plants, not at people; if it can see people, tell them and get their consent first.
- [Pi 4 temperature logger](https://app.soldr.ai/?prompt=I%20want%20to%20build%20a%20temperature%20logger%20with%20a%20Raspberry%20Pi%204%20and%20a%20waterproof%20DS18B20%20probe%2C%20powered%20by%20the%20official%20supply): The probe uses the Pi's 3.3 V and a 1-Wire GPIO pin. The supply stays at the wall; only the low-voltage USB-C side goes to the Pi. Learning project.

## Common mistakes

- This is a mains-powered unit: do not open it, modify it or wire anything to its mains side; plug it into a wall socket and connect only the USB-C plug to the Pi (source: [link](https://datasheets.raspberrypi.com/power-supply/15w-usb-c-power-supply-product-brief.pdf), Input specification, p.3)
- Using a weaker charger: the supply is rated 5.1 V at 3.0 A nominal for the Raspberry Pi 4 and Raspberry Pi 400 (source: [link](https://datasheets.raspberrypi.com/power-supply/15w-usb-c-power-supply-product-brief.pdf), Output specification, p.3)
- Using it in a hot enclosure: operating ambient temperature is 0-40 C (source: [link](https://datasheets.raspberrypi.com/power-supply/15w-usb-c-power-supply-product-brief.pdf), Environment, p.4)

## Not covered by the official source

- The brief covers the Raspberry Pi 15W USB-C Power Supply family; plug style by region is not repeated here.

## Sources

- [link](https://datasheets.raspberrypi.com/power-supply/15w-usb-c-power-supply-product-brief.pdf) (Raspberry Pi 15W USB-C Power Supply product brief, April 2024)