Word Processing Mainboard Assembly
This printed circuit assembly serves as the main motherboard for word processing machines classified under 8472.90.50, integrating CPU, memory, and I/O controllers. It falls under HTS 8473.40.21.00 because it is specifically designed as a part for those dedicated word processors, handling text processing and display functions. The assembly ensures compatibility with the machine's proprietary architecture.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If used in general automatic data processing machines
Assemblies principally for ADP machines of 8471 fall under parts of computers, not specific word processors.
If primarily for telecommunications switching
Circuit assemblies with telecom functions are classified in Chapter 85 for communication apparatus.
If sold as a complete testing instrument part
Printed circuits for semiconductor testing equipment shift to Chapter 90 instruments.
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Import Tips & Compliance
• Verify the assembly is exclusively for word processing machines of 8472.90.50 via technical specs and supplier certification to avoid reclassification
• Include detailed bills of materials (BOM) and diagrams showing compatibility with heading 8472 machines in import documentation
Related Products under HTS 8473.40.21.00
Word Processing Floppy Disk Controller Board
Printed circuit assembly controlling 5.25-inch floppy disk drives in legacy word processing machines under 8472.90.50. It handles data read/write for document storage, classified in HTS 8473.40.21.00 due to its principal suitability for those specific machines. Essential for non-volatile storage in pre-hard drive era word processors.
Word Processing Printer Interface Assembly
Printed circuit assembly for connecting and controlling dot-matrix printers in 8472.90.50 word processing machines. It manages parallel port protocols for high-speed text printing, under HTS 8473.40.21.00 as a dedicated part. Optimized for continuous form paper handling in office environments.
Word Processing Power Management Board
Printed circuit assembly regulating DC power distribution within 8472.90.50 word processing machines, including voltage regulation for logic circuits. Classified in HTS 8473.40.21.00 for sole use with those machines. Prevents overheating in continuous text processing operations.
Word Processing Machine Audio Output PCA
Printed circuit assembly for beep tones and voice synthesis in 8472.90.50 word processing machines, alerting on errors or status. Classified HTS 8473.40.21.00 for principal use in those dedicated devices. Used in models with integrated speech for proofreading.
Word Processor Expansion Bus Interface Board
Printed circuit assembly providing proprietary bus slots for peripherals in 8472.90.50 word processing machines. Enables add-ons like modems, under HTS 8473.40.21.00 as a core part. Supports NuBus or similar legacy architectures.
Word Processing Display Driver Assembly
Printed circuit assembly driving monochrome CRT displays in 8472.90.50 word processing machines, optimized for 80-column text. HTS 8473.40.21.00 due to exclusive suitability. Handles character generator ROM for fixed fonts.