Silverstone SX550 550W SFX Power Supply from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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