Word Processor ROM Firmware Assembly
Printed circuit assembly housing EPROM chips with firmware for 8472.90.50 word processing machines, containing OS and application code. Under HTS 8473.40.21.00 as a dedicated part enabling machine boot and operation. Supports word processing-specific algorithms like spell-check.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If solid-state non-volatile storage media
Discs/drives for data storage classify in Chapter 85.
If computer motherboards with firmware
General ADP boards with BIOS go to computer parts.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Include firmware version and checksums proving proprietary software
• Declare as machine-specific to avoid software classification issues
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.