Chapter 84 is one of the core chapters in the HS classification system, covering nuclear reactors, boilers, machinery, mechanical appliances, and their parts. This chapter has a very broad scope, from power equipment to office machinery. Its classification logic is based on function and use, not material. Computers and their storage components, as information processing equipment, are classified in this chapter, reflecting the position of modern technological products within the traditional classification system. Heading 8471 covers automatic data processing machines and their components, including complete machines such as computers, laptops, and tablets, as well as their dedicated storage components such as hard drives and solid-state drives. This heading treats storage components as integral parts of data processing systems rather than independent storage media, emphasizing their functional unity with the host machine. The first 2 digits 84 represent Chapter 84, i.e., machinery and mechanical appliances and parts thereof. The 3rd-4th digits 71 indicate heading 8471, specifically automatic data processing machines and their components. The 5th-6th digits 70 are a subheading specifically for storage components. Therefore, 847170 in full means computer storage components, such as hard disk drives, solid-state drives, etc. This code does not include independent storage media such as optical discs or USB flash drives (classified under 8523). Computer storage components, as dedicated components of automatic data processing machines, function to store programs and data and work in coordination with the host machine. Therefore, they are classified under 8471, not under independent storage media 8523 or electronic components 8542. If the storage component is a general-purpose storage device (such as an external hard drive), it may be classified under 8471 or 8523, depending on whether it is dedicated to a data processing system.

Product Name: The specific name of the declared commodity, such as solid-state drive or mechanical hard drive, which must match the actual item. Brand: The manufacturer or brand name, such as Samsung or Western Digital; if there is no brand, it must be noted. Model: The specific model or part number of the product, used to distinguish different specifications under the same brand. Storage Capacity: Such as 1TB, 512GB, etc., which is an important parameter for distinguishing storage component specifications. Interface Type: Such as SATA, NVMe, SAS, etc., which affects classification and functional determination. Is It Solid-State: Clearly indicate whether it is a solid-state drive (SSD) or a mechanical hard drive (HDD); both are classified the same but must be distinguished for declaration. Use: Such as for laptops, servers, etc., which must be specified. Country of Origin: The country or region where the goods are produced or manufactured, which affects tariffs and trade policies. Product Name: Solid-State Drive; Brand: Samsung; Model: MZ-V8P1T0B; Storage Capacity: 1TB; Interface Type: NVMe PCIe 4.0; Is It Solid-State: Yes; Use: For laptops; Country of Origin: South Korea. Mistakenly classifying storage components under 8471.50 (processing units) or 8471.80 (other units); storage components should actually be classified under 8471.70. Classifying external hard drives under 8471.70, but if independently packaged and not dedicated to a data processing system, they may be classified under 8523. Ignoring storage capacity units, leading to incorrect specification declaration, affecting customs valuation and classification. Failing to distinguish between solid-state and mechanical hard drives; although classified the same, incomplete declaration elements may raise questions.

The core basis for classification is whether the commodity is a dedicated storage component of automatic data processing machines. According to Chapter 84 notes and subheading notes for 8471, storage components must be used in conjunction with the host machine to achieve data storage functions. If it is an independent storage medium (such as a USB flash drive or optical disc), it is classified under 8523. If it is a general-purpose storage device, it must be determined based on its primary use. 847150 Processing Units: Processing units such as CPUs and motherboards are responsible for computation and control; storage components are responsible for data storage, with different functions. 847180 Other Units of Automatic Data Processing Machines: Other units such as graphics cards and network cards do not have storage functions; storage components are dedicated to data storage. 852351 Solid-State Non-Volatile Storage Media: 852351 refers to independent storage media such as USB flash drives and flash memory cards; 847170 refers to storage components dedicated to data processing systems. 852329 Other Magnetic Storage Media: 852329 refers to magnetic tapes, floppy disks, etc.; 847170 refers to components such as hard disk drives. 854232 Memories: 854232 refers to integrated circuit memories (such as RAM, ROM); 847170 refers to complete storage components (such as hard drives). Is the commodity dedicated to automatic data processing machines? Is it a complete storage component rather than an integrated circuit? Is it independently packaged for retail sale? Does it have storage functions and work in coordination with the host machine? Is it excluded from independent storage media under 8523?

Are the HS codes for solid-state drives and mechanical hard drives the same? Yes, both are classified under 847170 because they are computer storage components. However, when declaring, it is necessary to indicate 'Is It Solid-State' for customs statistics and valuation. Which code should external hard drives be classified under? If the external hard drive is dedicated to automatic data processing machines, it is still classified under 847170; if it is an independent storage medium (such as a portable hard drive with an enclosure), it may be classified under 8523. It must be determined based on primary use and function. How should storage arrays used in servers be classified? Storage arrays are usually composed of multiple hard drives. If they are components of automatic data processing machines, they are classified under 847170; if they are independent equipment, they may be classified under other subheadings of 8471 or 8517. Are USB flash drives and memory cards classified under 847170? No, USB flash drives and memory cards are independent storage media and are classified under 8523. 847170 only applies to storage components dedicated to data processing systems. How can I check the tariff rate for 847170? The latest tariff rates can be checked through the official website of the General Administration of Customs or the China Council for the Promotion of International Trade. Rates may change due to trade agreements, country of origin, etc., and it is recommended to rely on the rates published by customs at the time of declaration. What are common errors in declaration elements for storage components? Common errors include: general product names, incomplete models, incorrect capacity units, ignored interface types, and broad use descriptions. It is recommended to check item by item against the customs declaration filling specifications. If the storage component is second-hand or refurbished, does the classification change? The classification remains unchanged, still 847170. However, note that second-hand equipment may involve import prohibitions or additional regulatory conditions, and relevant certificates must be provided at the time of declaration. What is the difference between 847170 and 854232? 847170 refers to complete storage components, such as hard drives and solid-state drives; 854232 refers to integrated circuit memories, such as memory chips. The former is a component, while the latter is an element.