Adapter USB Type-C to DC 4.5x3.0 mm for Dell laptops — extra digital

USB Type-C to DC 4.5x3.0 mm Adapter (for Dell) converts a USB Type-C PD power source into a DC plug compatible with Dell laptops that use a 4.5x3.0 mm connector with a center pin. It enables powering and charging devices that require a 20 V input when used with a USB-C PD charger and suitable cable.

Advantages

The adapter supports USB Type-C Power Delivery and can handle up to 100 W (20 V / 5 A) when paired with a capable charger and cable, allowing use with higher-power laptop chargers. Its compact inline design makes it convenient for travel and reduces the need to carry a proprietary power brick. The simple plug-to-plug connection provides a quick way to adapt modern USB-C chargers for devices with a 4.5x3.0 mm DC inlet.

Suitable for

• Charging Dell laptops and notebooks that use a 4.5x3.0 mm DC inlet with center pin
• Using USB-C PD chargers to power devices requiring up to 20 V input
• Travel or situations where carrying a single USB-C PD charger is preferred

When it may not be suitable

The actual available power depends on the USB-C charger and cable used; if the charger or cable cannot provide PD at the required voltage or current, the laptop may not charge or may charge slowly. The adapter is designed specifically for 4.5x3.0 mm DC ports with a center pin and will not fit other DC barrel sizes or Dell models that use a different connector type.

Key specifications

• Input connector: USB Type-C (female)
• Output connector: 4.5 x 3.0 mm DC plug with center pin (male)
• Supported voltage: 20 V (via USB-C PD negotiation)
• Maximum power: up to 100 W
• Maximum current: up to 5 A
• Standard: USB Type-C Power Delivery (PD)

How to use

Connect the USB Type-C end of the adapter to a USB-C PD charger or power bank, ensuring the charger and cable support the required PD profile. Insert the 4.5x3.0 mm DC plug into the laptop's DC input with the center pin aligned. Verify the laptop indicates charging; if not, check the charger’s PD output capability and try a different USB-C cable that supports high-current PD.

What to consider before purchase

• Confirm your laptop uses a 4.5x3.0 mm DC inlet with a center pin
• Ensure your USB-C charger and cable support PD at up to 20 V / 5 A if you require full power
• Check compatibility with your specific Dell model and power requirements

Usage recommendations

To achieve optimal charging performance, use a USB-C PD charger and cable rated for 100 W (20 V / 5 A) and verify the charger’s PD profiles. Avoid using low-quality cables that do not support the required current, and inspect the DC plug and laptop inlet for secure fit before each use.