Answering Machine Flash Upgrade Interface Board from Mexico
Printed circuit assembly for firmware upgrades via telephone line in digital answering systems. Includes bootstrap loader and serial interface for 8521 devices. Specific to HTS 8522.90.45.00.
Duty Rate — Mexico → United States
10%
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
Import Tips
• Document upgrade protocols and security features
• Include service manual excerpts
• Classify as repair parts if value exceeds replacement threshold