# USB Micro-B receptacle

> a class of legacy (pre-C) USB Type-B (peripheral device end) receptacles

**Wikidata**: [Q133870521](https://www.wikidata.org/wiki/Q133870521)  
**Source**: https://4ort.xyz/entity/usb-micro-b-receptacle

## Summary
USB Micro-B receptacle is a class of legacy USB Type-B receptacles used for peripheral device connections that preceded the USB-C standard. It belongs to the USB Micro receptacle class along with Standard and Mini variants, specifically serving as the connection point for peripheral devices in the USB ecosystem.

## Key Facts
- USB Micro-B receptacle is a class of legacy (pre-C) USB Type-B (peripheral device end) receptacles
- It is classified as a subclass of USB Micro-B connector, USB Micro receptacle, and USB Type-B receptacle
- Also known as "Micro-USB Type-B receptacle"
- Different from USB Micro-B plug, USB Micro-AB receptacle, USB Standard-B receptacle, and USB Mini-B receptacle
- Has 1 sitelink on the knowledge platform
- Image visualization shows USB 2 Micro-B receptacle and USB 3 Micro-B receptacle
- Part of the commons category "USB Micro-B receptacles" on Wikimedia Commons

## FAQs
### Q: What is the purpose of USB Micro-B receptacle?
A: USB Micro-B receptacle served as a standard connection point for peripheral devices in the USB ecosystem before the advent of USB-C. It was designed for devices requiring a compact, durable connection for data transfer and charging.

### Q: What devices commonly used USB Micro-B receptacles?
A: USB Micro-B receptacles were widely used in smartphones, external hard drives, portable media players, GPS devices, and various other consumer electronics during the 2000s and early 2010s before USB-C became dominant.

### Q: How does USB Micro-B receptacle compare to USB-C?
A: USB Micro-B is an older, non-reversible connector that was replaced by USB-C, which is smaller, reversible, and supports faster data transfer rates and higher power delivery.

## Why It Matters
The USB Micro-B receptacle represents an important phase in USB connector evolution, bridging the gap between earlier USB Type-B designs and the modern USB-C standard. Its compact form factor addressed limitations of previous connectors while maintaining compatibility with the USB specification. As a standardized peripheral connector, it enabled a wide range of devices to connect with computers and chargers using a common interface. Despite being superseded by USB-C, USB Micro-B continues to serve as an important reference point in connector history and remains in use in legacy systems, making it relevant for understanding device compatibility and technological evolution.

## Notable For
- Being part of the USB Micro receptacle class along with Standard and Mini variants
- Its designation as a legacy (pre-C) USB Type-B receptacle specifically for peripheral devices
- Having a unique compact design that made it suitable for space-constrained devices
- Being differentiated from other USB receptacles by its specific form factor and application

## Body
### Overview
USB Micro-B receptacle is a class of legacy USB connectors that served as peripheral device connection points before USB-C became the standard. It belongs to the broader USB Micro receptacle class and is specifically categorized as a USB Type-B receptacle.

### Classification
- Subclass of: USB Micro-B connector
- Subclass of: USB Micro receptacle
- Subclass of: USB Type-B receptacle
- Different from: USB Micro-B plug (the male connector)
- Different from: USB Micro-AB receptacle (a hybrid connector type)
- Different from: USB Standard-B receptacle
- Different from: USB Mini-B receptacle

### Related Entities
- USB 2 Micro-B receptacle: The most compact legacy USB 2 receptacle used in peripheral devices
- USB 3 Micro-B receptacle: A legacy USB receptacle that preceded USB-C with the "B" designation indicating peripheral device end

### Technical Characteristics
- As shown in the available image, the USB Micro-B receptacle is visually distinct from other USB connectors
- Part of the USB 2 and USB 3 specifications in its respective variants
- Classified as a receptacle (female) connector for device connection

### Usage and Legacy
- Primarily used as a peripheral device connection interface
- Recognized as legacy technology in the context of modern USB-C dominated ecosystem
- Continues to appear in some existing hardware despite being superseded by newer standards