HS code · 6-digit subheading

HS Code 8471.70 – Units of automatic data processing machines; storage units

HS code 8471.70 is the 6-digit subheading for units of automatic data processing machines, storage units. It is used for hard disk drives (HDDs), solid State Drives (SSDs), USB flash drives, external hard drives and network-attached storage (NAS) devices.

What HS 8471.70 covers

HS 847170 is dedicated to storage units for automatic data processing machines, a category fundamental to the digital economy. These units are responsible for retaining all forms of digital data, from personal files to vast enterprise databases. Key importers and exporters include data center operators, cloud service providers, electronics manufacturers, and a broad spectrum of businesses and consumers. The trade in storage units is characterized by relentless innovation in capacity, speed, and form factor, driven by the exponential growth of data, the rise of cloud computing, and the increasing demand for secure and reliable data retention solutions. Global supply chains are complex and highly competitive.

Covers
  • Hard disk drives (HDDs)
  • Solid State Drives (SSDs)
  • USB flash drives
  • External hard drives
  • Network-attached storage (NAS) devices
  • Memory cards
  • Enterprise storage arrays
Examples
  • Samsung 990 Pro SSD
  • Western Digital My Passport external HDD
  • Seagate IronWolf NAS drive
  • Crucial MX500 SSD

Codes often confused with 8471.70

Common mistake. This code can be confused with 8523 (media for recording, e.g., blank CDs/DVDs) which covers the blank media itself, or 847160 if a device combines storage with significant input/output functions, but storage is not its sole or primary purpose.

85.23Discs, tapes, solid-state non-volatile storage devices, smart cards and other media for the recording of sound or of other phenomena, whether or not recorded, including matrices and masters for the production of discs, excluding products of Chapter 378471.60Units of automatic data processing machines; input or output units, whether or not containing storage units in the same housing

Top exporters and importers of HS code 847170, 2025

In 2025, the largest exporter of HS code 847170 in UN Comtrade data was China, with 21% of world exports; the largest importer in UN Comtrade data was China, with 24% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.

Top exporters 2025 · share of world exports

  1. 1 China $15.7B
  2. 2 Thailand $11.7B
  3. 3 United States $7.0B

World total: $73.6B Reported figures on UN Comtrade ↗

Top importers 2025 · share of world imports

  1. 1 China $21.0B
  2. 2 United States $14.0B
  3. 3 Mexico $8.8B

World total: $86.3B Reported figures on UN Comtrade ↗

How these figures are built

109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).

Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.

Brazil NCM codes for 8471.70 5

Brazil splits HS 8471.70 into 5 NCM codes, Mercosur's 8-digit tariff lines.

  1. 8471.70.10 Magnetic disk storage unitsDe discos magnéticos
  2. 8471.70.20 Optical disk drivesDe discos para leitura ou gravação de dados por meios ópticos (unidade de disco óptico)
  3. 8471.70.30 Magnetic tape storage unitsDe fitas magnéticas
  4. 8471.70.40 Solid-state drives (SSD)De estado sólido (SSD - Solid-State Drive)
  5. 8471.70.90 Other computer storage unitsOutras, incluídas as combinações de unidades de, pelo menos, dois dos itens precedentes

All Brazil NCM codes in heading 84.71 →

Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.

Questions about HS 8471.70

What is HS code 847170?

HS code 847170 is a 6-digit subheading in the Harmonized System that covers: Units of automatic data processing machines; storage units. HS 847170 is dedicated to storage units for automatic data processing machines, a category fundamental to the digital economy. These units are responsible for retaining all forms of digital data, from personal files to vast enterprise databases. Key importers and exporters include data center operators, cloud service providers, electronics manufacturers, and a broad spectrum of businesses and consumers. The trade in storage units is characterized by relentless innovation in capacity, speed, and form factor, driven by the exponential growth of data, the rise of cloud computing, and the increasing demand for secure and reliable data retention solutions. Global supply chains are complex and highly competitive.

What products fall under HS code 847170?

Hard disk drives (HDDs), Solid State Drives (SSDs), USB flash drives, external hard drives, network-attached storage (NAS) devices, memory cards, enterprise storage arrays

What are common misclassifications for HS code 847170?

This code can be confused with 8523 (media for recording, e.g., blank CDs/DVDs) which covers the blank media itself, or 847160 if a device combines storage with significant input/output functions, but storage is not its sole or primary purpose.

Which countries are the top exporters of goods under HS code 847170?

In 2025, the top exporters of HS code 847170 in UN Comtrade data were China ($15.7B, 21% of world exports), Thailand ($11.7B) and the United States ($7.0B). World exports came to about $73.6B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.

Which countries are the top importers of goods under HS code 847170?

In 2025, the top importers of HS code 847170 in UN Comtrade data were China ($21.0B, 24% of world imports), the United States ($14.0B) and Mexico ($8.8B). World imports came to about $86.3B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.

How is HS code 847170 structured?

HS code 847170 is a 6-digit subheading under the Harmonized System. The first 2 digits (84) identify the chapter, digits 3-4 (71) identify the heading, and digits 5-6 (70) specify the subheading. This code is standardized globally by the World Customs Organization.

What is the Brazil NCM code for HS code 847170?

Brazil splits HS code 847170 into 5 NCM codes: 8471.70.10 (Magnetic disk storage units), 8471.70.20 (Optical disk drives), 8471.70.30 (Magnetic tape storage units), 8471.70.40 (Solid-state drives (SSD)), 8471.70.90 (Other computer storage units). The first 6 digits of each match the HS code.