# USB 2 Type-B receptacle > the class of legacy USB 2 receptacles (those which carry only USB 1–2 and power) at the peripheral device ends of cables, replaced by the USB 2 Type‑C receptacle **Wikidata**: [Q133871761](https://www.wikidata.org/wiki/Q133871761) **Source**: https://4ort.xyz/entity/usb-2-type-b-receptacle ## Summary The USB 2 Type-B receptacle is a class of legacy USB receptacles designed to carry only USB 1-2 signals and power, located at the peripheral device ends of cables. It has been entirely replaced by the USB 2 Type-C receptacle in modern devices. ## Key Facts - The USB 2 Type-B receptacle is part of the USB 2 legacy receptacle class, which specifically carries only USB 1-2 and power signals - It has been completely replaced by the USB 2 Type-C receptacle across all applications - It belongs to the USB Type-B receptacle class, with the "B" designation indicating it's located at the peripheral device end of cables - Common aliases include USB 1.1 Type-B receptacle, USB 1.0 Type-B receptacle, USB-B 2.0 receptacle, and USB 2.0 Type-B receptacle - It is classified as a subclass of USB 2 Type-B connector, USB 2 legacy receptacle, and USB Type-B receptacle - The physical variants of this class include USB 2 Standard-B receptacle, USB 2 Micro-B receptacle, and USB Mini-B receptacle - It is distinctly different from USB 2 Type-B plug, USB 2 Type-A receptacle, USB 3 Type-B receptacle, USB 2 Type-C receptacle, and USB 2 Type-AB receptacle - It is documented in the commons category "USB 2 Type-B receptacles" with one available sitelink ## FAQs ### Q: What devices commonly used USB 2 Type-B receptacles? A: USB 2 Type-B receptacles were commonly found on peripheral devices such as printers, scanners, external hard drives, and older smartphones that utilized USB 1-2 connectivity for both data transfer and power. ### Q: How is USB 2 Type-B receptacle different from USB 2 Type-C? A: USB 2 Type-B receptacles are designed specifically for USB 1-2 and power signals and have a rectangular shape distinct from the oval USB 2 Type-C receptacle. The Type-C is the modern replacement that offers reversible connections, higher power capabilities, and is backward compatible with older standards. ### Q: What are the physical variants of USB 2 Type-B receptacles? A: The USB 2 Type-B receptacle class includes three main physical variants: USB 2 Standard-B receptacle (the original rectangular design), USB 2 Micro-B receptacle (a more compact version), and USB Mini-B receptacle (the oldest compact variant that was itself replaced by Micro-B). ### Q: When was USB 2 Type-B receptacle introduced and phased out? A: USB 2 Type-B receptacles were part of the USB 1.0 and USB 1.1 standards that preceded USB 2.0, and have been gradually phased out since the introduction of USB 2.0 Type-C connectors which now replace all legacy USB-B variants. ## Why It Matters The USB 2 Type-B receptacle represents a significant evolution in peripheral connectivity, standardizing how devices like printers, scanners, and storage connected to computers. Its introduction simplified connections while replacing numerous proprietary interfaces. However, as technology advanced, its limitations—including its non-reversible orientation and inability to handle higher power requirements—led to its obsolescence. The replacement by USB 2 Type-C wasn't merely a change in form factor but represented a complete redesign that addressed modern connectivity needs, including faster data transfer, higher power delivery, and reversible insertion. This transition marks an important milestone in the history of universal connectivity standards. ## Notable For - Being the standardized interface for USB 1-2 peripheral devices before USB-C became universal - Its distinctive rectangular shape that became iconic for connecting peripherals to computers - Belonging to the "B" series of USB connectors that specifically indicate peripheral device ends rather than host ends - Having multiple compact physical variants (Standard-B, Micro-B, Mini-B) to accommodate different device sizes - Being completely replaced by USB 2 Type-C receptacles across all applications in modern devices ## Body ### Overview and Classification The USB 2 Type-B receptacle belongs to the class of legacy USB receptacles specifically designed for USB 1-2 and power signals. It is categorized as part of the USB 2 Type-B connector class and USB 2 legacy receptacle class. The "B" designation indicates these receptacles are located at the peripheral device ends of cables, as opposed to host device ends. This class has been entirely superseded by USB 2 Type-C receptacles in modern implementations. ### Physical Variants The USB 2 Type-B receptacle class encompasses several distinct physical forms: - USB 2 Standard-B receptacle: The original rectangular design - USB 2 Micro-B receptacle: The most compact legacy USB 2 receptacle used in peripheral devices - USB Mini-B receptacle: The oldest compact legacy USB receptacle, which was later replaced by the USB 2 Micro-B receptacle itself These variants were designed to accommodate different device sizes while maintaining the same USB 1-2 and power functionality. ### Technical Specifications USB 2 Type-B receptacles are designed to carry only USB 1-2 and power signals, with higher-speed USB 3 functionality requiring separate connections or different receptacle types. They are physically distinct from other USB connector types, including the USB 2 Type-B plug (which inserts into the receptacle), USB 2 Type-A receptacle (used for host connections), and USB 2 Type-C receptacle (which replaced the entire Type-B class). ### Historical Context USB 2 Type-B receptacles emerged with the USB 1.0 and USB 1.1 standards and were later categorized under USB 2.0. They represented a significant standardization in peripheral connectivity, replacing numerous proprietary interfaces. The USB Mini-B variant was the first compact form, followed by the more compact USB Micro-B, both of which have been phased out in favor of USB Type-C connectors. ### Replacement by USB-C All USB 2 Type-B receptacles have been completely replaced by the USB 2 Type-C receptacle, which offers superior functionality including reversible insertion, higher power delivery capabilities, and better backward compatibility. This transition represents a complete overhaul of peripheral connectivity standards, with USB Type-C becoming the universal interface for both data and power transfer in modern devices.