Raspberry Pi 4 Official 27W USB-C Supply from China

Official Raspberry Pi 4 Model B 27W USB-C power supply, designed for single-board computers classified as ADP units under 8471. Includes inrush current limiting and 5.1V/5A output. HTS 8504.40.7001 for low-power SBC static converters.

Duty Rate — China → United States

35%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)

Import Tips

SBC power supplies easily confused with phone chargers; provide SBC compatibility proof

USB-PD protocol documentation helps distinguish from consumer chargers

High-volume maker shipments benefit from binding classification rulings