2.4Recording and interface technology

 

1000GB

750GB

500GB

250GB

 

 

 

 

 

Interface

Serial ATA (SATA)

 

 

 

 

 

 

Recording method

Perpendicular

 

 

 

 

 

 

 

Recording density, KBPI (kbits/inch max)

1,090

 

 

 

 

 

 

 

 

Track density, KTPI (ktracks/inch avg)

150

 

 

 

 

 

 

 

 

Areal density (Gbits/inch2 avg)

164

 

 

 

Spindle speed (RPM) (± 0.2%)

7,200

 

 

 

 

 

 

 

 

Internal data transfer rate (Mbits/sec max)

1287

 

 

 

 

 

 

 

 

Sustained data transfer rate (Mbytes/sec max)

105

 

 

 

 

 

 

 

I/O data-transfer rate (Mbytes/sec max)

300 (Ultra DMA mode 5)

 

 

 

 

 

 

 

2.5Physical characteristics

Maximum height

Maximum width

Maximum length

Max weight ST31000340NS

ST3750330NS

ST3500320NS

ST3250310NS

Cache buffer

26.1 mm (1.028 inches)

101.6mm (4.000 +/- 0.010 inches)

146.99mm (5.787 inches)

665 grams (1.466 lbs)

630 grams (1.389 lbs)

530 grams (1.168 lbs)

495 grams (1.091 lbs)

32 Mbytes (16,384 kbytes)

Barracuda ES.2 Serial ATA Product Manual, Rev. A

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Seagate ST3500320NS, ST31000340NS Recording and interface technology, Physical characteristics, 1000GB 750GB 500GB 250GB

ST3750330NS, ST31000340NS, ST3250310NS, ST3500320NS specifications

Seagate has long been a leader in the hard drive market, providing various storage solutions for personal and enterprise needs. Among its notable models are the ST3500320NS, ST3320630NS, ST3250310NS, and ST3750330NS, tailored for different applications, particularly in data center environments.

The Seagate ST3500320NS is a 500GB SATA hard drive designed for high-performance computing. One of its key features is a spindle speed of 7200 RPM, which offers quick data access times, significantly reducing latency in read and write operations. This model supports a 3Gb/s SATA interface, ensuring compatibility with a wide range of systems. Another important characteristic of the ST3500320NS is its robust error recovery mechanism, which enhances data integrity, making it suitable for applications where data precision is critical.

The ST3320630NS, on the other hand, is a 320GB variant, also featuring a 7200 RPM spindle speed. This model includes advanced power management features, allowing for reduced energy consumption without sacrificing performance. The drive's design focuses on reliability, designed to handle the demands of continuous operation in RAID configurations or as part of a network-attached storage (NAS) solution. Its dual stage actuator technology ensures more precise positioning of the read/write heads, improving overall performance and durability.

Considered an entry-level model, the ST3250310NS boasts a capacity of 250GB and shares the 7200 RPM speed common to other models. This drive is tailored for cost-effective solutions, providing a balance of price, performance, and reliability for small to medium business environments. Its resilience to shock and vibration makes it suitable for use in mobile workstations and external drives.

Lastly, the ST3750330NS features a significant 750GB capacity while maintaining the same 7200 RPM speed. It offers enhanced caching capabilities with a 32MB buffer, improving data throughput and responsiveness. Designed for high-capacity storage needs, this model is optimized for streaming applications and heavy workloads, reinforcing Seagate's commitment to delivering good performance in demanding scenarios.

All these models embody Seagate's dedication to innovation and reliability, featuring technologies such as Native Command Queuing (NCQ) and S.M.A.R.T. (Self-Monitoring, Analysis, and Reporting Technology) to monitor drive health. With years of expertise, Seagate continues to set industry standards for storage solutions, making these models ideal for a variety of professional applications.