Classification explainer

Dual-port USB wall charger, 20W USB-C power delivery plus USB-A, with folding prongs

Country of origin for this scenario: China.

Recommended HTS code

8504.40.95.10

With a power output not exceeding 50 W

MEDIUM confidence. Heading 8504 and subheading 8504.40.95 are confirmed by three on-point CBP rulings (H342570, H342571, H344006) classifying virtually identical dual-port USB-A/USB-C wall chargers under 8504.40.95. The 10-digit breakout 8504.40.95.10 (≤50 W) is present in the verified HTS rows and matches the 20 W output. However, a secondary question remains open: whether the device qualifies as 'for telecommunication apparatus' under 8504.40.85 (duty: Free) versus 'Other' under 8504.40.95 (duty: Free) — both carry the same general duty rate, but the subheading determines eligibility for Chapter 99 exclusion 9903.88.67. Additionally, the declared unit value of $3.10 exceeds the $2.00 cap for exclusion 9903.88.67 (which covers chargers 'valued not over $2 each'), so that exclusion is likely unavailable regardless of subheading.

Classification analysis generated on July 8, 2026 from the current Harmonized Tariff Schedule and published CBP rulings, for the product description shown — our analysis, not legal advice.

The question to put to a licensed broker

Does CBP treat this 20 W USB-C PD + USB-A wall charger as classifiable under 8504.40.85 ('for telecommunication apparatus') rather than 8504.40.95 ('Other'), and given the declared unit value of $3.10 exceeds the $2.00 cap in U.S. Note 20(mm)(32), is any Section 301 exclusion under 9903.88.67 available, or does the full 9903.88.03 additional duty apply?

How the classification was reached

GRI Reasoning

Step 1 – GRI 1: Heading Identification

The product is a dual-port (USB-C PD 20 W + USB-A) AC-to-DC wall charger with folding prongs. Its essential and primary function is converting AC mains voltage to regulated DC output — the textbook definition of a static converter (rectifier). Heading 8504 ('Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof') covers this product under GRI 1. Heading 8544 (insulated wire/cable) is inapplicable; the product's essential character is power conversion, not electrical conduction. Candidate code 8544.42.90 is eliminated.

Step 2 – GRI 1: Subheading Navigation within 8504

  • 8504.40 – 'Static converters': confirmed applicable (AC→DC rectification).
  • Three candidate subheadings within 8504.40:
  • 8504.40.85 – 'For telecommunication apparatus' (general rate: Free)
  • 8504.40.95 – 'Other' (general rate: Free)
  • 8504.40.60 / 8504.40.70 – Power supplies for ADP machines (heading 8471) or specific monitors/printers: not applicable for a general USB wall charger not designed for physical incorporation into an ADP machine.

Step 3 – 8504.40.85 vs. 8504.40.95

Rulings H342570, H342571, and H344006 (all July 21, 2025) directly address wall chargers with USB-A and USB-C ports (including an 'Xtreme Power' sample with 2.4A, USB-C + USB-A — nearly identical to the subject merchandise). CBP liquidated those goods under 8504.40.95 ('Other'), rejecting the protestant's argument for 8504.40.85 ('for telecommunication apparatus'). The rulings confirm that multi-port USB wall chargers of this type — general-purpose, capable of charging smartphones, tablets, and other devices — are classified under 8504.40.95, not 8504.40.85. The protestant's 8504.40.85 claim remained unresolved in the excerpted ruling text, but CBP's liquidation position (8504.40.95) is the operative binding classification used.

Step 4 – 10-Digit Statistical Suffix

Within 8504.40.95, the product is a power supply (rectifier/rectifying apparatus), not an inverter. Total rated output is 20 W (USB-C PD) plus USB-A (unspecified, typically ≤5–12 W) — aggregate output well under 50 W. The applicable statistical breakout is 8504.40.95.10 ('Power supplies: With a power output not exceeding 50 W'), which appears in the verified HTS rows.

Step 5 – Duty Rate

  • General (Column 1): Free (as shown in 8504.40.95 row)
  • Column 2 (Other): 35% (China is Column 1, not Column 2, so this does not apply)
  • Section 301 Additional Duty: 8504.40.95 carries footnote referencing 9903.88.03, which imposes 'the duty provided in the applicable subheading plus 25%' for Chinese-origin goods. Effective duty = Free + 25% = 25% ad valorem (subject to any applicable exclusion).

Step 6 – Section 301 Exclusion Analysis (9903.88.67)

U.S. Note 20(mm)(32) provides an exclusion for 'Static converters of a kind used to charge telecommunication apparatus in cars or homes, valued not over $2 each (described in statistical reporting number 8504.40.8500).' The subject merchandise has a declared unit value of $3.10, which exceeds the $2.00 cap. Therefore, even if the product were classified under 8504.40.85 (and described by 8504.40.8500), it would not qualify for the 9903.88.67 exclusion based on value alone. The full Section 301 additional duty of 25% (via 9903.88.03) is expected to apply.

Step 7 – Duty Summary

| Component | Rate |

|---|---|

| Column 1 General | Free |

| Section 301 (9903.88.03) | +25% |

| Effective total | 25% |

Step 8 – Ruling Analogy Summary

H342570, H342571, and H344006 are highly analogous: same product type (plastic AC-DC USB wall charger, USB-A + USB-C ports), same origin (China), same classification outcome (8504.40.95 + 9903.88.03). These are the most directly on-point rulings in the supplied evidence.

Cited CBP rulings

Every ruling below was fetched from CBP’s public CROSS database and verified to exist before this page was published. Links go to the official ruling text.

  • H342570

    What it classified: Dual-port USB wall chargers (including USB-A + USB-C variants) from China, AC-DC static converters for charging smartphones and tablets, entered as wall chargers

    Why it’s analogous: Nearly identical merchandise: plastic AC-DC static converter wall charger with USB-A and USB-C ports, same origin (China). CBP classified under 8504.40.95 ('Static converters: Other') with Section 301 additional duties under 9903.88.03. Directly on-point for the subject dual-port USB-C PD + USB-A 20 W wall charger.

  • H342571

    What it classified: Dual-port USB wall chargers (USB-A and USB-C) and car chargers from China, AC-DC static converters

    Why it’s analogous: Same product category and origin as subject merchandise; CBP confirmed 8504.40.95 classification and 9903.88.03 applicability. Exclusion under 9903.88.67 was sought but merchandise was liquidated under 8504.40.95, not 8504.40.85.

  • H344006

    What it classified: Various USB wall chargers and car chargers (AC-DC static converters) with USB-A and USB-C ports from China

    Why it’s analogous: Third parallel ruling on same merchandise type; CBP classification under 8504.40.95 + 9903.88.03 reinforces consistent agency position applicable to the subject 20 W dual-port USB wall charger.

  • H343160

    What it classified: iHome Artificial Plant (iPP45): composite good — artificial succulent plant with USB-C (20 W) and USB-A (10 W) charging ports, classified under 8504.40.9550

    Why it’s analogous: Confirms that a device with two USB-C sockets at 20 W and one USB-A socket is classified under 8504.40.95 as a static converter. The 10-digit suffix 8504.40.9550 used in H343160 corresponds to the 'Other' line (8504.40.95.50) but note that the subject product is a power supply rectifier, pointing to 8504.40.95.10 (≤50 W power supply) rather than the 'Other' residual suffix.

  • H337821

    What it classified: iHome Artificial Plant (iPP45): composite good with USB-C (20 W) and USB-A charging station functionality, classified under 8504.40.9550

    Why it’s analogous: Original ruling affirmed in H343160; confirms heading 8504 and subheading 8504.40.95 for a USB-C PD 20 W + USB-A static converter device of Chinese origin.

What the duty looks like

Duty math shown for illustrative declared values — $3.10 per unit at 25,000 units per year is our assumption for this explainer, not a measurement of anyone's imports. Your numbers will differ.

Base duty rate (column 1, general)
Free
Annual declared value at the illustrative numbers
$77,500
Base duty per year (illustrative)
$0

Chapter-99 overlay headings flagged on this code

  • 9903.88.03The duty provided in the applicable subheading + 25%. Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)

Overlay applicability depends on origin, entry date, and any active exclusions — verify at entry.

Alternatives considered

The full candidate set from the fetched tariff rows — including rows that would carry a higher duty. Shown so the reasoning is checkable, not to offer a rate menu.

CodeDescriptionGeneral rateNote
8504.40.85.00For telecommunication apparatusFreeAlternative if CBP determines the charger is 'for telecommunication apparatus' — general rate is also Free, Section 301 overlay 9903.88.03 still applies (+25%). However, 8504.40.85 classification would bring the product within the statistical reporting number (8504.40.8500) referenced by exclusion 9903.88.67, though the $3.10 declared unit value exceeds the exclusion's $2.00 per-unit cap, making the exclusion unavailable regardless. CBP's liquidation position in rulings H342570, H342571, and H344006 rejects this subheading for general-purpose USB chargers and confirms 8504.40.95.
8544.42.90.90Other2.6%Weak alternative — insulated electric conductors fitted with connectors, general rate 2.6%. Rejected under GRI 1 because the product's essential character is AC-to-DC power conversion (static converter function), not electrical conduction. CBP consistently classifies USB chargers under heading 8504, not 8544.

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