# USB 2 Type-C plug

> the version of the USB Type-C plug that replaces all legacy USB 2 plugs and carries power up to 240 W in either direction, omitting the connections required for the higher data rates of USB3, USB4, Thunderbolt, and DisplayPort

**Wikidata**: [Q134307520](https://www.wikidata.org/wiki/Q134307520)  
**Source**: https://4ort.xyz/entity/usb-2-type-c-plug

## Summary  
The USB 2 Type-C plug is a reversible 24-pin connector designed to replace older USB 2 plugs (e.g., Type-A, Type-B, Micro) while supporting power delivery up to 240W in either direction. It omits connections for high-speed data protocols like USB3, USB4, Thunderbolt, and DisplayPort, focusing on USB 2.0 speeds and universal power delivery. Released in 2014, it simplifies device connectivity by standardizing a single plug format.

## Key Facts  
- **Power Delivery**: Supports up to 240W bidirectional power (via USB Power Delivery).  
- **Release Date**: Specified in the USB Type-C specification published on August 11, 2014.  
- **Pin Configuration**: 24-pin design with dedicated pins for power (Vbus), data (D+/D−), and configuration (CC), omitting high-speed data lines.  
- **Compatibility**: Works with USB 1.0, 1.1, and 2.0 protocols, replacing legacy USB 2 plugs (Type-A, Type-B, Micro).  
- **Data Speed**: Limited to USB 2.0 speeds (480 Mbps), excluding support for USB3/4, Thunderbolt, or DisplayPort.  

## FAQs  
### Q: What is the maximum power the USB 2 Type-C plug can deliver?  
A: It supports up to 240W of power delivery in either direction, enabling high-power applications like laptop charging.  

### Q: Does the USB 2 Type-C plug support video output or Thunderbolt?  
A: No, it omits the necessary pins for high-speed data protocols like Thunderbolt, USB4, and DisplayPort.  

### Q: Is the USB 2 Type-C plug faster than traditional USB 2.0 plugs?  
A: No, it maintains USB 2.0 data speeds (480 Mbps) but improves upon legacy plugs with reversible design and higher power capacity.  

## Why It Matters  
The USB 2 Type-C plug represents a critical shift toward universal connectivity, eliminating the need for multiple USB plug types (Type-A, Micro, etc.) while future-proofing devices with high-power delivery. By standardizing a single reversible design, it reduces user frustration and e-waste from incompatible cables. Its focus on power over high-speed data makes it ideal for charging and low-bandwidth applications, ensuring compatibility with older USB standards while integrating with modern Power Delivery ecosystems. This balance of simplicity, backward compatibility, and scalability has cemented its role in everything from smartphones to industrial devices.

## Notable For  
- **240W Power Delivery**: Highest power capacity of any USB 2 connector, enabling charging for laptops and high-power devices.  
- **Legacy Replacement**: Consolidates all USB 2 plug variants (Type-A, Type-B, Micro) into a single reversible design.  
- **Protocol Agnostic**: Supports USB 1.0/1.1/2.0 but excludes advanced data protocols, reducing pin complexity.  
- **Universal Orientation**: Reversible plug eliminates "upside-down" insertion issues common in older USB designs.  

## Body  
### Technical Specifications  
The USB 2 Type-C plug features a 24-pin configuration with symmetrical pins divided into two rows (A1–A12 and B1–B12). Key pins include:  
- **Vbus (A4, A9)**: Power delivery.  
- **D+/D− (A6, A7)**: USB 2.0 data lines.  
- **CC (A5)**: Configuration channel for power negotiation.  
- **GND (A1, others)**: Grounding pins.  
Unused pins (N/C) are omitted to reduce cost and complexity compared to "full-featured" USB-C connectors.  

### Design and Compatibility  
Released in 2014 as part of the USB Type-C specification, it replaces legacy USB 2 plugs (Type-A, Type-B, Micro) while maintaining backward compatibility with USB 2.0 data speeds. Its reversible design and 240W power capacity make it suitable for both low-power peripherals and high-power devices like laptops. Unlike "full-featured" USB-C connectors, it excludes pins for alternate modes (e.g., DisplayPort) and high-speed data protocols, streamlining it for basic connectivity and power delivery.  

### Use Cases  
- **Charging**: Primary use for devices requiring up to 240W (e.g., laptops, tablets).  
- **Data Transfer**: Limited to USB 2.0 speeds for peripherals like keyboards, mice, and external storage.  
- **Legacy Support**: Compatible with older USB 1.0/1.1 devices through adapters or hubs.  

### Differentiation  
It is distinct from "full-featured" USB-C plugs (supporting USB4/Thunderbolt) and "power-only" USB-C cables, focusing solely on USB 2.0 functionality and high-power delivery. This specialization reduces manufacturing costs while addressing the majority of consumer needs for charging and low-speed data transfer.

## 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)