8544.42.10.00—Fitted with modular telephone connectors
General
Free
Units
No.
Column 2
35%
Special
8544.42.10.00—Fitted with modular telephone connectorsGeneral
Free
Units
No.
Column 2
35%
Special
—
HTS 8544.42.10.00 is the U.S. Harmonized Tariff Schedule classification for Fitted with modular telephone connectors. It's a 10-digit statistical line in Chapter 85: Electrical machinery and equipment and parts thereof; sound recorders and reproducers; television image and sound recorders and reproducers, and parts and accessories of such articles, Section XVI: Machinery and Mechanical Appliances; Electrical Equipment; Parts Thereof; Sound Recorders and Reproducers, Television Image and Sound Recorders and Reproducers, and Parts and Accessories of Such Articles, used by U.S. Customs and Border Protection to determine the duty rate at entry. 6 Chapter 99 tariff modifications currently stack on top of the base rate.
New to HTS codes? Read our guide on how HTS classification works →
Chapter 99 overlays that stack on the base rate
| Code | Authority | Rate |
|---|---|---|
| 9903.78.01 | section_232 | 50% ad valorem |
| 9903.78.02 | section_232 | Free |
| 9903.82.13 | section_232 | 0% |
| 9903.82.15 | section_232 | 10% |
| 9903.88.01 | section_301 | The duty provided in the applicable subheading plus 25% |
| 9903.88.15 | section_301 | The duty provided in the applicable subheading + 7.5% |
Past CBP decisions classifying real products under this HTS code. Useful precedent when classifying a similar product — each ruling shows how CBP interpreted the code for a specific case.
The tariff classification of APT-31 EHS cable from Mexico
The tariff classification of a video conferencing accessory kit from Thailand
The tariff classification of a video conferencing accessory kit from Mexico
The tariff classification of a triplex wall jack adapter and a cable with a 5-jack adapter from China.
Source: CBP CROSS (view all rulings on rulings.cbp.gov →)
HTS 8544.42.10.00 is the U.S. Harmonized Tariff Schedule classification for Fitted with modular telephone connectors. It belongs to Chapter 85 of the HTSUS.
The general (Column 1) duty rate for HTS 8544.42.10.00 is Free. This is the most-favored-nation (MFN) rate that applies to imports from World Trade Organization member countries.
The Column 2 rate for HTS 8544.42.10.00 is 35%. This rate applies to imports from countries that do not have normal trade relations with the United States (currently Cuba and North Korea).
Yes — HTS 8544.42.10.00 is covered by section_232 provision 9903.78.01 (50% ad valorem). 5 additional overlays also touch this code. Open the code page for the full overlay stack with effective dates and country scopes.
No active AD/CVD orders currently flag HTS 8544.42.10.00 in Tandom's catalog. Tandom monitors Federal Register notices daily; a flag will appear here within 24h of any new order's publication.
Tandom guides relevant to this code
What the 178 active Section 301 exclusions cover, how to claim 9903.88.69 on an entry, and what changes when the November 10, 2026 deadline passes.
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How to read, order, and report Chapter 99 HTS codes alongside the base classification on a US entry summary in 2026. The full stacking ladder for brokers and compliance teams.
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