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HSChapter 84
U.S. imports of automatic data processing storage units (nesoi) (HS 847170) totaled $2.7B in July 2026, traded with 61 countries.
Importers of Automatic Data Processing Storage Units (NESOI) paid $7.6M in duties in July 2026 — an effective duty rate of 17% on $44.6M in dutiable value, based on actual customs collections rather than the published tariff schedule. Automatic Data Processing Storage Units (NESOI) imports of $2.7B in July 2026 ran 27% above the year-to-date monthly average of $2.2B.
Last updated: July 2026 dataHard disk drives, floppy disk drives, and other magnetic storage units for ADP machines are classified here, with the US tariff schedule drawing distinctions based on disk diameter (greater than 21 cm versus smaller), cabinet assembly status, and whether an external power supply is included — distinctions that reflect the heading's long history and now apply primarily to hard disk drives and residual storage formats. Thailand and the Philippines are major US import sources for hard disk drives under this heading, a supply concentration that creates meaningful logistics and geopolitical risk exposure for enterprise storage buyers. Importers should pay close attention to whether drives are shipped with or without external power supplies and whether they are assembled in cabinets, as these factors determine which of the eleven US tariff lines applies.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
7.3K shipments/mo
The tariff schedule retains legacy lines for flexible (floppy) magnetic disk drives because the legal text has not been updated to remove them. Obsolete formats that technically meet the floppy drive description should still be classified in those specific lines (e.g., 8471704035 or 8471705035) rather than in the residual NESOI lines, to ensure accurate classification.
Yes. The US schedule explicitly separates hard disk drive units without an external power supply (8471704065) from other disk drive units without a base and external power supply (8471704095), and provides additional lines for drives with full cabinet assembly. Importers must confirm the power supply configuration at time of entry to select the correct line.
Subheading 4 of 8 in heading 8471
Subheading 847170 · $2.7B of $45.2B
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ImportsExports
Imports
$2.7BYoY · Pro
Exports
$932.2MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
Mexico and Thailand together supply 78% of it.
customs district
destination
entry
rate provision · imports
87.5% enters free of duty; the effective duty rate is 0.28%.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 8471709000 | Other Storage Units, NESOI | $1.6B | 0.02% | 0.11% | $384K |
| 8471704065 | Hard Disk Drive Unt, NESOI, W/Out Extnl Powr Suply | $823.5M | 0.79% | 4.81% | $6.5M |
| 8471702000 | Magnetic Disk Drive Units Gt 21 Cm(8.3 In) in Diam | $206.5M | 0.01% | 0.07% | $27K |
| 8471705065 | Hard Magnetic Disk Drive Units, NESOI | $70.4M | 0.19% | 0.77% | $131K |
| 8471706000 | Storage Units, NESOI, Not Assembled in Cabinets | $70.2M | 0.77% | 3.13% | $541K |
| 8471703000 | Magnetic Disk Dr Unit,Disk Diam Gt 21cm,NESOI | $8.3M | 0.11% | 0.47% | $9K |
| 8471701000 | Magnetic Disk Dr,Disk Diam Gt 21cm,W/O Rd/Write | $2.2M | 0.17% | 0.82% | $4K |
| 8471705095 | Magnetic Disk Drive Units, NESOI | $1.9M | 2.61% | 18.37% | $49K |
| 8471704095 | Disk Drive Unt, NESOI, W/O Base and Extrnl Pow Spy | $160K | 4.34% | 18.93% | $7K |
| 8471705035 | Flexible (Floppy) Magnetic Disk Drive Units,NESOI | $56K | 0.00% | 0.00% | -- |
| 8471704035 | Flex(Floppy)Magnet Disk Drive Unt,No Cab,Power Sup | $25K | 6.08% | 29.72% | $2K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.