What is an E-Marker chip?

An E-Marker chip is a controller that allows a USB-C cable to communicate with devices and chargers to safely deliver more than 60W of power. Without it, cables are limited to 60W max.

Can I use a 100W cable for a 60W device?

Yes, 100W cables are fully backwards compatible. They will only deliver the power your device requests, making them a safe and future-proof choice.

100W vs 60W:
The Technical Gap

Don't let your cable be the weak link in your high-performance setup. We deconstruct the architecture of USB-C power delivery to show why the UGREEN 100W is the only logical choice for $2026.

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Specifications Showdown

Feature	Standard 60W	UGREEN 100W
Power Delivery	60W Max	100W (PD 3.0)
E-Marker Chip	None (Passive)	Smart E-Marker 2.0
MacBook Speed	Bottlenecked	Full Velocity
Build Quality	TPE/PVC Plastic	Nylon Braided + Aluminum

The Safety Risk of Passive Cables

Standard cables without E-Marker chips are not designed to handle more than 3 Amps of current. Attempting to force high-wattage charging through a legacy cable can lead to voltage drops, connector melting, and permanent damage to your MacBook's logic board.

Referenced from USB-IF Hardware Specifications

Universal PD Integration

The UGREEN 100W Series supports advanced PPS (Programmable Power Supply) protocols, which are essential for the ultra-fast charging modes on the Samsung Galaxy S25 and Google Pixel 9 Pro.

PPS Support

5A Current

The Verdict: Buy Once, Buy Right.

Saving $3 on a cable isn't worth risking a $2,000 laptop. The UGREEN 100W 2-pack offers the best price-to-performance ratio for the $2026 tech ecosystem.