USB-IF Specifications
USB-IF
USB HID (keyboards/mice), mass storage, and Type-C PD all have USB-IF class specs — separate from the base transport spec.
What It Is
USB4, USB 3.2, USB 2.0, USB Type-C, USB Power Delivery, and device class specifications (HID, Mass Storage, CDC, Audio, Video).
Taxonomy
By spec type: Base · Type-C/PD · Device class · Compliance
Top-Level Categories
Master Catalog
Sub-Indexes & Guides
Non-profit corporation that manages the USB specification and certification program. Maintains USB4, USB 3.2, USB 2.0, USB Type-C, USB Power Delivery (PD 3.1, up to 240W), and the USB class specifications (HID, Audio, Mass Storage, CDC, Video). USB-IF certification ensures interoperability across billions of devices.
View all bodies →Curated specs from USB-IF
USB is the universal connector. Understanding USB PD for 240W power delivery, USB4 tunneling for Thunderbolt docks, and USB 3.x throughput tiers is essential for hardware-connected software, embedded development, and device driver work.