USB-C (PD) Cables: The New International Standard for Power Delivery

What is USB-C PD?

USB-C PD, short for USB-C (Power Delivery), has revolutionized the way we power and charge our electronic devices. The technology allows bi-directional power, meaning it can power a device while charging another device by negotiating the optimal power requirements between the device and the charger.?The adjustable voltage supply mode allows the devices that are being powered to request intermediate voltages between 15V and up to the maximum available fixed voltage of the charger.

How does it work?

Unlike traditional USB cables, which have a fixed power output, USB-C PD cables can negotiate the optimal power level between the device and the charger. This means that your laptop can receive more power than your smartphone, ensuring the fastest possible charging time for each device.

USB-C PD: The Different Tiers of Power Delivery

USB-C PD cables come in various power delivery standards, each capable of delivering different amounts of power. Here's a breakdown of the common ones:

• USB PD 2.0: This standard introduced features like increased power delivery, improved data transfer speeds, and better compatibility. It's capable of delivering up to 60 watts of power.
• USB PD 3.0: Building upon its predecessor, PD 3.0 offers higher power output, reaching up to 100 watts using USB Type-C cables rated at 5A. This standard is ideal for charging laptops and other high-power devices.
• USB PD 3.1: The latest standard of USB Power Delivery (PD). It brings a significant upgrade in power with up to 240 Watts of bi-directional output/input and fixed voltage levels, including 28V, 36V, and 48V. This more efficiently powers devices like high-end laptops and some desktop computers while increasing charging speeds.

Choosing the Right USB-C PD Cable

• Power requirements: Match the cable's power delivery rating to your device's needs. A smartphone might only require 18 watts, while a laptop could demand 60 watts or more.
• Device compatibility: Ensure the cable is compatible with both your device and the charging adapter.
• Certifications: Look for certifications like USB-IF, TüV, or UL to ensure compatibility and safety.
• Cable length: Longer cables might experience power loss, so choose an appropriate length based on your usage.
• Durability: Choose cables with reinforced connectors and durable materials to withstand daily use.

The Future of Charging: Power All Your Electronic Devices with a Universal Interface

USB-C PD delivers the optimal amount of power safely to devices, increasing charging speeds, using the versatile USB-C connector. Starting in 2024, smartphones, tablets, smartwatches, speakers, headsets, and all other small devices need to have a USB-C connector per EU law. As of 2026, laptops need to be chargeable via USB-C PD.?