DELL 280W USB-C GaN AC Adapter CK39H for High-End Notebooks

The DELL CK39H is a 280-watt USB-C power adapter built on gallium nitride (GaN) technology, which allows a compact form factor without sacrificing output. Unlike many high-wattage adapters that rely on proprietary connectors, this model delivers power over USB Power Delivery 3.0, making it suitable for Dell Precision 7000 series, Alienware m/x series, and XPS 16/18 notebooks that support USB-C charging at this wattage.

Highlights

• 280 W maximum output over USB-C with Power Delivery 3.0
• GaN technology keeps the adapter smaller and more efficient
• Works with AC input from 100 to 240 V at 50/60 Hz
• Integrated protection against overcurrent, overvoltage, short circuit, and overheating

In daily use

The adapter accepts standard AC mains input worldwide and includes an AC cable for connection to the wall. Its USB-C output is designed for high-performance notebooks that require up to 280 W, providing a single-cable solution when paired with a compatible USB-C cable. The black housing is understated and suited to professional environments.

Full specifications

• Product type: AC power adapter
• Power output: 280 W
• Connector type: USB-C
• Power Delivery standard: USB Power Delivery 3.0
• Charging technology: GaN (Gallium Nitride)
• Input voltage: AC 100-240 V
• Input frequency: 50/60 Hz
• DC cable length: 1.8 m
• AC cable included: Yes
• Safety features: Overcurrent protection, Overvoltage protection, Short-circuit protection, Over-temperature protection
• Colour: Black
• Compatibility: Dell Precision 7000 series, Alienware m/x series, XPS 16/18 (specific models)
• Form factor: Compact
• Energy efficiency: High (due to GaN technology)

Final note

The DELL CK39H is a high-output USB-C adapter for demanding Dell workstations and gaming laptops, combining GaN efficiency with a compact design.