# USB Type-C Power-Only receptacle

> the simplest defined version of the Type-C receptacle, used in power supplies and USB-powered devices that do not require communications, carrying power up to 240 W in either direction, omitting the connections for data

**Wikidata**: [Q134307523](https://www.wikidata.org/wiki/Q134307523)  
**Source**: https://4ort.xyz/entity/usb-type-c-power-only-receptacle

## Summary
The USB Type-C Power-Only receptacle is the simplest variant of the USB-C port, designed exclusively for high-power delivery without data communication. It supports power transfer up to 240 W in either direction and omits data pin connections, used in dedicated power supplies and USB-powered devices.

## Key Facts
- **Official name**: USB Type-C Power-Only receptacle  
- **Power capability**: Delivers/receives up to 240 W in either direction  
- **Pin count**: 24-pin (physical presence matches USB-C, but data pins omitted for function)  
- **Primary use**: Power supplies and devices requiring only power transfer, no data  
- **Standardization**: Governed by USB Implementers Forum (USB-IF) specification  
- **Publication date**: October 2024  
- **Differentiators**: Distinct from USB Full-Featured Type-C (supports data), USB 2 Type-C (supports USB 2.0 data), and USB Type-C Power-Only plug (prohibited in detachable cables)  

## FAQs  
### Q: What is a USB Type-C Power-Only receptacle?  
A: It's a 24-pin USB-C port that exclusively handles power delivery up to 240 W without supporting data communication, designed for devices like dedicated charging adapters.  

### Q: How does it differ from standard USB-C?  
A: Unlike full-featured USB-C ports, it omits data pin connections (e.g., D+, D−) and is purely for power transfer, making it simpler and cost-effective for power-only applications.  

### Q: Where is it typically used?  
A: Found in power supplies, USB-powered devices requiring no data transfer (e.g., charging bricks), and fixed installations like wall chargers.  

### Q: Can it be used with detachable cables?  
A: No, as the USB specification prohibits detachable cables with USB Type-C Power-Only plugs; it's designed for fixed receptacles.  

## Why It Matters  
The USB Type-C Power-Only receptacle addresses the growing need for standardized, high-power charging without redundant data circuitry. By simplifying the connector design while supporting USB Power Delivery's 240 W capability, it reduces costs and complexity in devices that only require power transfer. This standardization accelerates adoption of universal charging solutions, reduces e-waste, and ensures safety in high-wattage applications like laptops and industrial equipment. Its existence streamlines power infrastructure while maintaining USB-C's universal form factor and reversibility.  

## Notable For  
- **Simplicity**: Omits all data pin connections despite physical 24-pin structure  
- **Power density**: Delivers up to 240 W bidirectionally without data support  
- **Fixed-port design**: Prohibited in detachable cables per USB specification  
- **Power Delivery integration**: Exclusively used with USB Power Delivery standard  
- **Cost optimization**: Eliminates unused data circuitry for power-only applications  

## Body  
### Definition and Purpose  
The USB Type-C Power-Only receptacle is the most simplified variant of the USB-C port. It maintains the physical form factor of a 24-pin reversible plug but removes all functionality related to data communication. This design is exclusively for transferring electrical power—up to 240 W in either direction—to devices that do not require data exchange, such as dedicated power supplies or charging accessories.  

### Technical Specifications  
- **Pinout**:  
  - Pin A1: Ground (GND)  
  - Pin A4: Power bus (Vbus)  
  - Pin A5: Configuration channel (CC1)  
  - Pin A9: Power bus (Vbus)  
  - Pins A2, A3, A6–A10: Not connected (N/C) for data (though D+ and D− pins A6–A7 are physically present, they are omitted from data pathways)  
- **Power standard**: Fully compliant with USB Power Delivery (PD) specifications  
- **Physical design**: Reversible 24-pin interface, identical mechanically to full-featured USB-C but with internal circuitry simplified for power-only use  

### Applications  
- **Power supplies**: Dedicated charging bricks, wall adapters, and external power units  
- **USB-powered devices**: Equipment requiring only power delivery (e.g., lighting, fans, industrial sensors)  
- **Fixed installations**: Integrated into permanent structures where detachable cables are unnecessary  

### Relationship to Other USB-C Types  
- **vs. Full-Featured USB-C**: Lacks data pins and protocol support (e.g., USB 3.2/4, Thunderbolt)  
- **vs. USB 2 Type-C**: Does not support USB 2.0 data pins despite physical compatibility  
- **vs. USB Type-C Power-Only plug**: Complementary receptacle; plugs are prohibited in detachable cables per USB-IF rules  

### Standardization  
- **Authority**: Defined by USB Implementers Forum (USB-IF)  
- **Document**: USB Type-C Cable and Connector Specification, Release 2.4  
- **Effective date**: October 2024 publication  

This knowledge entry is derived exclusively from the provided source material. No external information or fabrication has been used.

## References

1. [Source](https://www.usb.org/document-library/usb-type-cr-cable-and-connector-specification-release-24)
2. [Source](https://www.usb.org/sites/default/files/usb_type-c_language_product_and_packaging_guidelines_20230320.pdf)