8517.62.00.10 - Modems, of a kind used with data processing machines of heading 8471

This HTS classification covers modems specifically designed for use with data processing machines falling under heading 8471. These devices are characterized by their ability to convert digital data from a data processing machine into a format suitable for transmission over communication lines (such as telephone lines or internet cables) and vice versa. Examples include dial-up modems, DSL modems, and cable modems that directly interface with computers or networking equipment for data communication.

Distinction from sibling categories is crucial for accurate classification. While heading 8517.62.00.20 encompasses switching and routing apparatus, this category is specifically for modems that act as the interface between a data processing machine and the transmission medium. The sibling category 8517.62.00.90, "Other," would apply to apparatus for transmission or reception of data that do not fit the specific definitions of modems or switching/routing equipment.

As this HTS code is a leaf node, there are no further subcategories to introduce. Classification within this code is determined by the modem's primary function of enabling data communication for data processing machines of heading 8471. Therefore, any apparatus designed for data transmission that does not meet this specific requirement would be classified elsewhere.