Analysis
HTS 8471.70.30 covers for a disk of a diameter exceeding 21 cm: other under heading 8471 (automatic data processing machines and units thereof; magnetic or optical readers…).
Goods from countries without normal trade relations pay the column 2 rate of 35% instead of nothing, so origin decides between free entry and a 35% duty.
Goods classified here enter the United States duty-free at the general (normal trade relations) rate, as do about 61% of the 823 tariff lines in chapter 84. Chapter 99 measures such as Section 301 or 232 can still apply on top, depending on where the goods come from.
Census statistics map these goods to NAICS 334112 (Computer Storage Device Manufacturing), an industry of 61 US establishments employing 7,221 people. That is the industry code a US manufacturer of the same product would normally use.
All 6 neighbouring lines carry the same duty-free rate, so a borderline choice between them changes the statistics reported, not the duty paid.
Every edition we compared, from Jan 2023 to Oct 2026 (Rev. 22), shows the same general rate of Free.
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 8471.70.10 | Without read-write unit assembled therein; read-write units entered separately | Free |
| 8471.70.20 | Units for physical incorporation into automatic data processing machines or units thereof | Free |
| 8471.70.40 | Not assembled in cabinets, and without attached external power supply | Free |
| 8471.70.50 | Other: other | Free |
| 8471.70.60 | Not assembled in cabinets for placing on a table, desk, wall, floor or similar place | Free |
| 8471.70.90 | Other storage units: other | Free |