USB-IF PD3.1 Specification

On May 25, 2021, the USB-IF Association introduced the initial USB PD.1 latest fast specification with an updated section on Standard Power 3. The USB PD3​​.1 specification classifies the USB PD3​​.0 content into the standard power range (standard power range, SPR, with a maximum constant power of 100W; at the same time, the extended power range (Extended EPR for short) power range is added, and the maximum power is determined by 100W expanded to 240W.