What Is USB-PD?
By WillItSnap Team · March 2026
USB Power Delivery — a fast-charging standard that can deliver up to 240W over USB-C cables.
What Is USB-PD?
USB Power Delivery (USB-PD) is a universal fast-charging standard that negotiates higher voltages and currents over USB-C cables. It allows devices to charge at speeds far beyond the original 5V/2.4A USB limit, with the latest USB-PD 3.1 specification supporting up to 240W.
For phones, USB-PD is the most widely supported fast-charging standard. It works across brands — the same USB-PD charger can fast-charge an iPhone, a Samsung Galaxy, a Google Pixel, and even a laptop.
USB-PD Wattage Tiers
USB-PD supports multiple power profiles. Your phone negotiates the highest supported tier with the charger automatically:
| Tier | Typical Use | Voltage |
|---|---|---|
| 20W | iPhones, basic smartphones | 9V / 2.22A |
| 30W | Pixel, Galaxy, fast phone charging | 9V / 3A |
| 45W | Samsung Galaxy Ultra, flagship phones | 15V / 3A |
| 65W | Phones + tablets, small laptops | 20V / 3.25A |
| 100W | Laptops, multi-device chargers | 20V / 5A |
| 240W | High-performance laptops, PD 3.1 | 48V / 5A |
USB-C Phones in Our Database (0)
0 out of 171 phones in our database use USB-C, making them compatible with USB-PD chargers. The remainder use Lightning or Micro-USB.
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Frequently Asked Questions
What does USB-PD stand for?
USB Power Delivery. It is a specification that allows USB-C devices to negotiate higher power levels for fast charging, supporting up to 240W in the latest PD 3.1 revision.
Do all USB-C phones support USB-PD?
Most modern USB-C phones support some level of USB-PD, but the maximum wattage varies. iPhones cap at about 27W, Samsung phones go up to 45W, and some Chinese brands support 65W or more.
Can one USB-PD charger work for all my devices?
Yes. A 30W or 45W USB-PD charger will fast-charge virtually any phone (iPhone, Samsung, Pixel, etc.) as well as tablets and some laptops. The charger and device negotiate the best speed automatically.
Is USB-PD the same as Quick Charge?
No. USB-PD is a USB-IF standard, while Quick Charge is Qualcomm's proprietary technology. Many modern chargers support both standards. USB-PD is more universal and is the long-term industry direction.
What cable do I need for USB-PD fast charging?
A USB-C to USB-C cable rated for at least 3A (60W). For speeds above 60W, you need an e-marked 5A cable. Look for cables that explicitly state USB-PD or Power Delivery support.