Universal Serial Bus, or USB, is frequently accompanied by acronyms and shorthand when discussing various related technologies that aren’t particularly popular or widely recognized. For instance, it may not be common knowledge what the “C” in a USB-C port signifies. USB PD, which stands for USB Power Delivery, is slightly more familiar but still likely unknown to many individuals. Another abbreviation often linked to USB PD yet not widely recognized is EPR. It refers to Extended Power Range, a specification for power delivery. This denotes that a specific USB port can provide between 101W and 240W of power.
EPR was introduced in the USB PD 3.1 standard as a successor to the Standard Power Range (SPR), which permits power delivery of up to 100W using USB ports. It has effectively eliminated the necessity for large proprietary power adapters that we typically receive with gaming laptops and other devices requiring similar power, such as e-bikes and power tools. Here’s everything you should know about USB PD EPR (Extended Power Range).

