Interface connector

Hitachi Global Storage Technologies

The figure below shows the physical pin location

All pins are in a single row, with a 127 mm (0.050”) pitch.

The comments on the mating sequence in Table in the section 7.3 apply to the case of back-plane

blind-mate connector only. In this case, the mating sequences are:(1)the ground pins P4 and P12;(2) the pre-charge power pins and the other ground pins; and (3) the signal pins and the rest of the power pins.

There are three power pins for each voltage. One pin from each voltage is used for pre-charge in the backplane blind-mate situation.

If a device uses 3.3V, then all V33 pins must be terminated. Otherwise, it is optional to terminate any of the V33 pins

If a device uses 5.0V, then all V5 pins must be terminated. Otherwise, it is optional to terminate any of the V5 pins

If a device uses 12.0V, then all V12 pins must be terminated. Otherwise, it is optional to terminate any of the V12 pins.

Page 4

version 1.0

HTS725040A9A362, HTE725032A9A364, HTS725012A9A362, HTS725025A9A360, HTS725012A9A361 specifications

The Hitachi HTE725016A9A364, HTS725025A9A361, HTS725016A9A364, HTS725016A9A362, and HTE725040A9A364 are highly regarded models within Hitachi’s line of advanced hard disk drives (HDDs). These drives are designed to cater to a variety of needs within computing environments, ranging from personal storage solutions to enterprise-level applications.

One of the most notable features of these Hitachi models is their high capacity, making them suitable for extensive data storage. The HTE725016A9A364 offers 160GB, while the HTS725025A9A361 has a capacity of 250GB. The HTS725016A9A364 and HTS725016A9A362 both share the 160GB capacity, and the HTE725040A9A364 stands out with a larger option at 400GB. This ability to store significant amounts of data is crucial for users needing space for multimedia files, applications, or databases.

In terms of performance, these drives utilize a 7200 RPM spindle speed which enhances data access times and overall efficiency. This speed is particularly beneficial for applications requiring quick read/write cycles, like video editing, gaming, and database management. Furthermore, they adopt a SATA interface, enabling rapid data transfer rates, which is critical for modern computing tasks.

The Hitachi drives incorporate advanced technologies aimed at enhancing reliability and durability. With features such as Soft Touch technology, these HDDs are designed to minimize thermal and mechanical stress, contributing to an extended lifespan. Additionally, they have built-in data protection mechanisms, like error correction codes, which help ensure data integrity during transfers.

Power efficiency is another key characteristic of these models. They are engineered to consume less energy compared to older HDD technologies, aligning with modern demands for greener computing solutions. This also translates into lower heat generation, which can prolong the drive's operational life.

In terms of compatibility, these drives are tailored to be versatile across various operating systems and configurations, making them easy to integrate into existing setups. This adaptability, coupled with their reliable performance and storage capacities, makes the Hitachi HTE725016A9A364, HTS725025A9A361, HTS725016A9A364, HTS725016A9A362, and HTE725040A9A364 an excellent choice for a diverse range of users looking for quality hard drive solutions.

Hitachi Global Storage Technologies