Chapter 84 is the broad category in the HS classification system covering 'nuclear reactors, boilers, machinery and mechanical appliances and parts thereof,' involving power machinery, pumps, fans, refrigeration equipment, computers, office equipment, etc. The core characteristic of this chapter is that goods must have a mechanical function or serve as dedicated parts of mechanical appliances, rather than merely being the material itself. Heading 8473, as a heading thereunder, specifically targets parts of computers and office equipment, reflecting the principle of 'separate classification of complete machines and parts.' Heading 8473 covers parts and accessories of machines of headings 84.69 to 84.72 (such as typewriters, computers, office equipment) that are solely or principally used with such machines. It includes various internal components of computers (such as motherboards, memory, power supplies), casings, brackets, as well as dedicated parts of printers and copiers. However, it does not include general electronic components (such as resistors, capacitors) or separately presented plastic or metal articles, unless they are clearly solely used with the aforementioned machines. Code 847330 has 6 digits: the first 2 digits '84' represent Chapter 84 (machinery and mechanical appliances), digits 3-4 '73' represent heading 8473 (parts and accessories solely or principally used with machines of headings 8469 to 8472), and digits 5-6 '30' represent subheading 8473.30 (parts of computers and office equipment). In the HS system, the first 4 digits are internationally uniform headings, and the last 2 digits are subheadings that individual countries may further subdivide. 8473.30 specifically includes parts of computers (such as CPU sockets, memory modules, hard drive brackets) and parts of office equipment (such as printer paper feeders), but does not include parts of communication equipment of heading 85.17. This commodity is classified under 847330 because it is a dedicated part of a computer (heading 8471) and complies with the classification principle of 'solely or principally used.' If it were a general electronic component (such as a capacitor), it should be classified under Chapter 85; if it were a plastic casing that does not constitute a part characteristic, it would be classified according to its material. 8473.30 is distinguished from 8473.40 (parts of other office equipment) by use: the former is used for computers, the latter for typewriters, calculators, etc.

Product Name: The specific name of the declared commodity, such as 'computer motherboard,' 'memory module,' 'hard drive bracket,' etc., which must be consistent with the actual item. Use: Explain what machine the part is dedicated to, such as 'for laptop computers' or 'for desktop computers.' Brand: Declare the manufacturer or brand name, such as 'Intel,' 'Samsung'; if there is no brand, fill in 'no brand.' Model: Declare the specific model or specifications, such as 'DDR4 3200MHz 8GB,' to facilitate customs identification. Material: The main constituent materials, such as 'plastic + metal,' 'ceramic,' 'silicon,' etc., which affect classification. Whether Dedicated Part: Clearly state whether the part is dedicated to computers, such as 'Yes, dedicated to computers of heading 8471.' Functional Principle: Briefly describe the role of the part in the computer, such as 'used to connect CPU and memory,' 'stores data.' Product Name: Computer Motherboard; Use: For desktop computers; Brand: ASUS; Model: PRIME B560M-A; Material: Printed circuit board (fiberglass + copper); Whether Dedicated Part: Yes, dedicated to computers of heading 8471; Functional Principle: Carries components such as CPU and memory to enable data exchange. Declaring general electronic components (such as capacitors) as computer parts, which should be classified under Chapter 85. Failure to indicate 'dedicated' leading to classification under other headings, such as plastic casings classified by material. Incorrect brand and model entry, affecting customs valuation and classification traceability.

The core basis for classification is General Rules 1 and 6 of the HS, as well as the text and notes of heading 8473. Parts must be 'solely or principally used' with machines of headings 8469 to 8472. If a part is of a general nature (such as screws, springs), it is classified according to its material or as a general part. Additionally, reference should be made to the detailed explanations of 8473 in the 'Explanatory Notes to the Tariff Schedule of Import and Export Commodities,' for example, computer parts include motherboards, memory, power supplies, etc., but do not include separately presented integrated circuits (classified under 85.42). 8471 Automatic Data Processing Machines: 8471 is the complete machine (such as a computer), while 8473 is its parts. If a complete computer is imported, it should be classified under 8471; if it is a part, then under 8473. 8473.40 Parts of Other Office Equipment: 8473.40 is for parts of office equipment such as typewriters and calculators, while 8473.30 is specifically for parts of computers and office equipment (such as printers), to be distinguished by use. 8542 Integrated Circuits: If an integrated circuit is separately presented, it is classified under 8542; if it has been assembled into a computer part (such as a memory module), it is classified under 8473.30. 8534 Printed Circuit Boards: Blank printed circuit boards are classified under 8534; if populated with components constituting a computer part, they are classified under 8473.30. 3926 Plastic Articles: If a computer plastic casing is dedicated to computers, it is classified under 8473.30; if it is a general plastic article, it is classified under 3926. Is the part solely or principally used with computers? Does it belong to general parts (such as screws, springs)? Does it already constitute a complete machine characteristic? Is it a separately presented integrated circuit? Is it distinguished from parts of office equipment under 8473.40?

Which HS code should a computer motherboard be classified under? A computer motherboard is dedicated to computers and should be classified under 8473.30. However, note: if the motherboard is a blank printed circuit board (unpopulated), it is classified under 8534; if it is populated with components and constitutes a computer part, it is classified under 8473.30. When declaring, elements such as use, brand, and model must be provided. What is the difference in classification between memory modules and solid-state drives? Both memory modules and solid-state drives are dedicated to computers and are classified under 8473.30. However, if a solid-state drive is a standalone external device, it may be classified under 8471.70. The key is whether it serves as an internal computer part. When declaring, 'dedicated to computers' must be indicated. Should a computer power adapter be classified under 8473 or 8504? If a power adapter is dedicated to computers, it is classified under 8473.30; if it is a general-purpose power supply, it is classified under 8504. The criterion is whether it is dedicated to computers. For example, laptop power adapters are generally classified under 8473.30, but if they can be used with other devices, they are classified under 8504. How can I check the tariff rate for 847330? You can visit the official website of the General Administration of Customs of China or use the 'Customs Tariff' to query by entering HS code 847330 and view the MFN rate, general rate, etc. Note that rates change, so it is advisable to refer to the latest tariff schedule. You may also consult a customs broker or use professional query tools. Should a computer casing be classified under 8473 or 3926? If the casing is dedicated to computers and constitutes a part thereof, it is classified under 8473.30; if it is a general plastic casing, it is classified under 3926. The key is whether it is dedicated to computers. When declaring, proof of use must be provided, such as 'dedicated to laptop computers.' What declaration elements are required for importing computer parts? Typically, product name, use, brand, model, material, whether it is a dedicated part, and functional principle are required. Specific requirements are subject to customs. It is advisable to prepare detailed information in advance to avoid customs clearance delays due to inaccurate declaration. What is the difference between 847330 and 847340? 847330 is for parts of computers and office equipment, such as computer motherboards and printer paper feeders; 847340 is for parts of other office equipment, such as typewriters and calculators. The key distinction is use: the former is for computers of heading 8471, the latter for other equipment of headings 8469-8472. How can classification errors be avoided when importing computer parts? Recommendations: 1. Clarify whether the part is dedicated to computers; 2. Refer to the 'Explanatory Notes to the Tariff' and classification decisions; 3. Provide detailed declaration elements; 4. Apply for advance classification if necessary. Avoid mistakenly classifying general parts under 8473.30 or omitting dedicated characteristics.