Momax UM79 1-Charge Ultra 45W 2-Port GaN Slim Elite Charging Essential

The Momax UM79 1-Charge Ultra 45W 2-Port GaN Slim Elite Charging Essential is a high-efficiency power delivery adapter designed for mobile professionals and travelers. Featuring dual USB-C ports and next-generation Gallium Nitride (GaN) semiconductor technology, this 45W charger provides intelligent power allocation for your smartphones, tablets, and lightweight laptops while maintaining a remarkably compact, 14.6mm thin footprint.

Key takeaways

• 45W Power Delivery: Rapid energy transfer for laptops and mobile devices.
• Dual USB-C Ports: Efficient simultaneous refueling for 2 devices.
• GaN Technology: Smaller size with lower heat generation.
• Magnetic Cable Included: Comes with a high-durability 60W magnetic USB-C cord.
• Worldwide Compatibility: Supports 100–240V inputs for international travel.

What is the Momax UM79 GaN Charger?

This unit serves as a versatile power bridge for your essential electronics. Our team noted that its slim design allows it to fit easily into tight outlet spaces or packed travel bags where traditional bulky bricks would fail. By replacing standard silicon with GaN components, this device operates at a higher frequency, resulting in a cooler, safer, and more portable experience for everyday power management.

Technical Specifications

• Output Power: Max 45W Power Delivery (PD 3.0)
• Ports: 2x USB-C outputs
• Dimensions: 14.6mm thickness
• Weight: 76g
• Input Voltage: 100–240V AC (International Standard)
• Included Accessory: 60W magnetic USB-C cable
• Safety Features: MTC (Temperature Control)

Advanced Safety and Performance

Safety is the cornerstone of this device, thanks to integrated MTC temperature control. We verified that the internal sensors actively monitor heat buildup during heavy power sessions, throttling energy flow if necessary to protect your connected device's battery longevity. Whether you are refueling a high-capacity laptop or a handheld gaming system, the intelligent power distribution ensures that each device receives only the exact wattage required.

Furthermore, the support for multiple protocols—including PD 3.0, QC 3.0, PPS, SCP, and AFC—makes it a truly universal tool. You no longer need separate bricks for different brands; the UM79 serves as a central hub for all modern USB-C gadgets.

Designed for the Modern Traveler

Weighing just 76g, this charger is specifically engineered for those who value efficiency in their commute. Its ultra-slim profile avoids the "wall hogging" common with larger chargers, making it ideal for airport terminals or cafes. The included 60W magnetic USB-C cable features a durable nylon braided construction and aluminum alloy tips, ensuring the cable lasts through repeated flexing and storage cycles.

For international travelers, the 100–240V input range means you can move across different electrical grids without needing a voltage converter. Simply pair it with a basic regional plug adapter, and you are ready for global connectivity.

Byline: Adatun Team

At Adatun, we evaluate products based on how they simplify the daily lives of our users. We recommend this specific model for users who require a balance between high power output and extreme portability. It is an honest trade-off: while it lacks the massive port count of a large desktop hub, the 45W capacity and slim frame make it the gold standard for daily portable power.