磁盘驱动器
| 单磁道搜索时间（读/写） |
2 ms |
| 读取搜索 |
8.9 ms |
| 平均等待时间 |
4.2 ms |
| 全程查找 |
21 ms |
| 硬盘容量 |
400 GB |
| 硬盘转速 |
7200 RPM |
| 硬盘接口 |
Serial ATA II |
| 传动装置，缓冲区大小 |
8 MB |
| 每扇面字节数 |
512 |
环境条件
| 操作冲击 |
65 G |
| 非运行性振动 |
20-500 Hz, 4G G |
| 运行性震动 |
0.004 G |
| 非操作性冲击 |
250 G |
Caviar® Blue™ 400GB, SATA II, 7200RPM, 8MB
To make drive selection simple, we’ve gathered all our popular WD Caviar SE16, WD Caviar SE, and WD Caviar drives under one umbrella we call WD Caviar Blue. Built to Western Digital’s awarding winning quality standards, these drives are available in a full range of performance features.
Key Features
Interface
EIDE - Enhanced integrated drive electronics (EIDE), also called Parallel ATA (PATA), hard drives have been the standard in the computer industry for more than 10 years.
SATA - Serial ATA (SATA) hard drives are quickly becoming the new standard. Motherboard manufacturers now include SATA inputs on their boards. Because of their considerably narrower cables, SATA hard drives provide increased airflow and less clutter and in the computer system compared to EIDE drives.
The performance difference - EIDE drives support data transfer rates up to 100MB/sec, and all WD Caviar Blue SATA drive support 3 Gb/s transfer rates.
How to choose - Our handy Interface Guide [link] can help you make your selection.
Cache - WD Caviar Blue is available in 2 MB, 8 MB, and 16 MB cache sizes. Bigger cache memory yields faster performance.
Capacity - We offer drives ranging from 40 GB to 750 GB. Pick the biggest capacity your budget will allow. You can never have too much storage space.
Reliability - We understand the importance of your data, and we are committed to protecting that data with exceptionally reliable products, advanced data protection technology and superior customer support.
Cool - Keeping the drive cool enhances reliability. WD continues to develop new and innovative ways to keep drives cool while they are operating.
Quiet - The technology that Tom's Hardware Guide called "very fast and nearly silent" is used throughout this family of drives. Our WhisperDrive™ technology minimizes noise to levels near the threshold of human hearing. To cut seek noise, SoftSeek™ technology streamlines read/write seeking algorithms, resulting in more efficient operation.
NoTouch™ ramp load technology - The recording head never touches the disk media ensuring significantly less wear to the recording head and media as well as better drive protection in transit. (Available on 120 GB capacities and above)
IntelliSeek™ - Calculates optimum seek speeds to lower power consumption, noise and vibration. (Available on 120 GB capacities and above) [View demo]
Compatible - We perform tests on hundreds of systems and a multitude of platforms in our FIT Lab™ and Mobile Compatibility Lab to give our customers confidence that our drives will work in their systems.
