| HS Code | Official Doc | Tariff Rate | Origin | Destination | Effective Date |
|---|---|---|---|---|---|
| 8548000000 | Doc | 55.0% | CN | US | 2025-05-12 |
Ray Disc Drive
A ray disc drive, more commonly known as a Blu-ray Disc drive, is an optical disc storage device that uses a blue laser to read and write data to Blu-ray Discs. It is the successor to the DVD drive and CD drive, offering significantly higher storage capacity.
Material
Blu-ray Discs themselves are constructed from polycarbonate plastic, coated with a protective layer. The data layer utilizes a dye or phase-change material that is altered by the laser to represent data. The drive mechanics consist of a blue laser diode, an optical pickup head with a lens system, a spindle motor to rotate the disc, and a servo system for precise positioning. The casing is typically constructed of metal and plastic.
Purpose
The primary purpose of a Blu-ray Disc drive is to read and write data to Blu-ray Discs. This data can include:
- Video content: High-definition movies and TV shows are the most common application.
- Data storage: Archiving large files, software distribution, and backups.
- Gaming: Distribution and playback of games requiring large storage capacity (e.g., PlayStation, Xbox games).
Function
The drive functions by:
- Laser Emission: A blue laser (wavelength of 405nm) is emitted from the laser diode. The shorter wavelength allows for more precise focusing and reading of smaller data pits.
- Focusing and Reading: The laser beam is focused onto the disc's data layer through a lens system. The reflected light is analyzed to determine the pattern of pits and lands, representing binary data (0s and 1s).
- Writing: When writing data, the laser heats a portion of the dye or phase-change material, altering its reflective properties to create pits and lands.
- Rotation & Positioning: A spindle motor rotates the disc at varying speeds (depending on the drive and disc type). A servo system precisely positions the laser head to access specific data locations.
- Data Transfer: The read or written data is then transferred to/from the host computer via an interface like SATA or USB.
Usage Scenarios
- Home Entertainment: Playback of Blu-ray movies and TV shows on Blu-ray players and gaming consoles.
- Data Archiving: Long-term storage of important files, photos, and videos.
- Software Installation: Installation of software from Blu-ray discs.
- Gaming: Playing games that require large storage capacity and fast data access.
- Professional Applications: Video editing, content creation, and data backups in professional settings.
Common Types
- Internal Drives: Installed inside a computer case, connecting via SATA interface. These are typically used for permanent storage and playback.
- External Drives: Connect to a computer via USB interface, offering portability and convenience.
- Blu-ray Writers (BD-R/BD-RE): Can both read and write data to Blu-ray discs (recordable and rewritable).
- Blu-ray Readers (BD-ROM): Can only read data from Blu-ray discs (read-only).
- Ultra HD Blu-ray Drives: Support playback of 4K Ultra HD Blu-ray discs, requiring HDMI 2.0 connectivity for proper output.
- Slot-in Drives: Commonly found in gaming consoles (PlayStation), where the disc is inserted into a slot rather than a tray.
Based on the provided information, the declared goods "ray disc drive" can be classified under the following HS code:
-
8548000000: Electrical parts of machinery or apparatus, not specified or included elsewhere in this chapter.
- 85: Electrical machinery and equipment and parts thereof.
- 48: Electrical parts of machinery or apparatus.
- 000000: Not specified or included elsewhere in this chapter. This indicates a broad category for electrical components that don't fit neatly into other, more specific classifications within Chapter 85.
Tax Rate Details:
- Basic tariff: 0.0%
- Additional tariff: 25.0%
- Additional tariff after April 2, 2025: 30.0%
- Total tariff: 55.0%