Silverstone SX550 550W SFX Power Supply from China
Compact SFX form factor 550W PSU for small form factor PCs and HTPCs under 8471. HTS 8504.40.70.12 applies to this 150-500W static converter designed for ADP equipment. Features 92mm fan, full modularity, and 30cm shortened cables for SFF chassis compatibility.
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
• SFX specification alone doesn't change classification; must confirm ADP end-use documentation
• Shorter cables distinguish from standard ATX; specify in invoice to avoid general PSU confusion
• 92mm fan noise specs important for IT equipment compliance certification