2.16 Corrosive environment

2.15Environmental protection

Seagate designs its products to meet environmental protection requirements worldwide, including regulations restricting certain chemical substances.

2.15.1European Union Restriction of Hazardous Substances (RoHS)

Seagate designs its products to meet environmental protection requirements worldwide, including regulations restricting certain chemical substances. A new law, the European Union Restriction of Hazardous Substances (RoHS) Directive, restricts the presence of chemical substances, including Lead, Cadmium, Mercury, Hexava- lent Chromium, PBB and PBDE, in electronic products, effective July 2006. This drive is manufactured with components and materials that comply with the RoHS Directive.

2.15.2 China Restriction of Hazardous Substances (RoHS) Directive

This product has an Environmental Protection Use Period (EPUP) of 20 years. The following table contains information mandated by China's "Marking Requirements for Control of Pollution Caused by Electronic Information Products" Standard.

"O" indicates the hazardous and toxic substance content of the part (at the homogenous material level) is lower than the threshold defined by the China RoHS MCV Standard.

“O”

RoHS MCV

"X" indicates the hazardous and toxic substance content of the低于part (at the homogenous material level) is over the threshold defined by the China RoHS MCV Standard.

“X”表示该部件（于同类物品程度上）所含的危险和有毒物质中国RoHS MCV标准所定义的门槛值。

Seagate electronic drive components pass accelerated corrosion超出testing equivalent to 10 years exposure to light industrial environments containing sulfurous gases, chlorine and nitric oxide, classes G and H per ASTM B845. However, this accelerated testing cannot duplicate every potential application environment.

Users should use caution exposing any electronic components to uncontrolled chemical pollutants and corro- sive chemicals as electronic drive component reliability can be affected by the installation environment. The sil- ver, copper, nickel and gold films used in Seagate products are especially sensitive to the presence of sulfide, chloride, and nitrate contaminants. Sulfur is found to be the most damaging. In addition, electronic components should never be exposed to condensing water on the surface of the printed circuit board assembly (PCBA) or exposed to an ambient relative humidity greater than 95%. Materials used in cabinet fabrication, such as vulca- nized rubber, that can outgas corrosive compounds should be minimized or eliminated. The useful life of any electronic equipment may be extended by replacing materials near circuitry with sulfide-free alternatives.

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Momentus 5400 FDE.3 SATA Product Manual, Rev. A

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Seagate ST9320322AS, ST9160312AS manual Environmental protection, European Union Restriction of Hazardous Substances RoHS
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ST9120312AS, ST9160312AS, ST9320322AS specifications

The Seagate ST9320322AS, ST9160312AS, and ST9120312AS are hard disk drives (HDDs) designed for reliable storage solutions in various computing environments. These drives belong to the Barracuda line, known for their high performance and robust features.

The ST9320322AS is a 320GB, 2.5-inch SATA hard drive that operates at a speed of 7200 RPM. It has a 16MB cache buffer, enhancing data access speeds and allowing for efficient multi-tasking. This drive is particularly suitable for laptops, external drives, and other applications requiring high-capacity storage paired with portability. Its low power consumption makes it an ideal choice for mobile systems, contributing to longer battery life.

On the other hand, the ST9160312AS is a 160GB version, also a 2.5-inch SATA HDD running at 7200 RPM. Like the ST9320322AS, it features a 16MB cache, which optimizes performance for everyday computing tasks. This model is often utilized in gaming consoles and entry-level laptops, offering a balance of performance and affordability. With a height of only 9.5mm, it is designed to fit in ultrathin laptops while providing ample storage space for user data, applications, and multimedia files.

The ST9120312AS further reduces storage capacity to 120GB, while maintaining the same rotational speed of 7200 RPM. This HDD is designed for users looking for reliable, cost-effective storage solutions without compromising on performance. Like its counterparts, it features a 16MB cache and operates efficiently, making it suitable for applications that require moderate data storage, such as basic computing tasks and media storage.

All three models leverage Seagate’s advanced recording technology, which enhances data integrity and reliability. They also incorporate sophisticated error recovery tools that help prevent data loss, ensuring longevity and durability under various operating conditions. These drives support the SATA interface, which provides high-speed data transfer rates, making them compatible with a wide range of computing devices.

In conclusion, the Seagate ST9320322AS, ST9160312AS, and ST9120312AS hard drives represent a strong selection for users in need of reliable, efficient, and compact storage solutions. With their combination of high performance, energy efficiency, and advanced technologies, they continue to serve a vital role in modern computing architectures.
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