GaN Power Adapter QOLTEC 52387 90W 1x USB‑C 5–20V

GaN power adapter QOLTEC 52387 90W 1x USB‑C 5–20V is a compact high-power USB‑C PD charger designed to deliver up to 90 watts through a single USB‑C output. The adapter uses GaN (gallium nitride) technology to reduce physical size and thermal output while maintaining stable power delivery across a 5–20V range. It is intended for charging laptops, tablets and smartphones that support USB‑C Power Delivery and is suitable for travel, home and office environments where a reliable high-power USB‑C charger is required.

Advantages

The GaN design offers a smaller footprint and improved thermal efficiency compared with conventional silicon-based adapters, allowing the charger to remain compact without sacrificing performance. Delivering up to 90W from a single USB‑C port supports fast charging for a wide range of devices, and the broad 5–20V output range enables compatibility with different PD power profiles. The adapter’s simplified single-port configuration reduces cable clutter and provides straightforward connection and use.

Suitable for

• Charging USB‑C laptops that accept up to 90W input
• Powering tablets and large-screen devices during use
• Fast-charging smartphones and smaller devices via USB‑C PD
• Travel and remote work where compact, high-power charging is needed
• Desk or bedside charging when a single, reliable USB‑C outlet is preferred

Key specifications

• Maximum output power: 90 W
• Output port: 1 × USB‑C
• Output voltage range: 5–20 V
• Charging standard: USB Power Delivery (PD) compatible profiles
• Technology: Gallium Nitride (GaN) for reduced size and heat
• Form factor: compact wall adapter suitable for mains outlets

How to use

Connect a compatible USB‑C cable between the adapter and the device to be charged, then plug the adapter into a suitable mains outlet. The adapter negotiates the appropriate PD voltage within the 5–20V range and supplies up to 90W as required by the connected device. Ensure the device supports USB‑C Power Delivery and that the cable used is rated for the required current and power to achieve optimal charging performance. Unplug the adapter when charging is complete or when not in use.

Recommendations

Use a certified USB‑C PD cable rated for high-wattage charging to ensure safe and efficient power delivery. Avoid covering the adapter while in use to maintain adequate ventilation, and inspect both cable and adapter periodically for signs of wear. For the best results with high-power laptops, connect the adapter directly to the device rather than through hubs or extension cables that may limit power transfer.