Silverstone SX550 550W SFX Power Supply from Mexico
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 — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
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