What Is a Top Drive?

Western Digital Hard Drive (WD) is a hard drive produced by Western Digital. Western Digital Corp. is a world-renowned hard drive manufacturer. The company was founded in 1970 and began designing and manufacturing hard drives in 1988. Headquartered in Lake Forest, California, USA, it is one of the oldest hard disk manufacturers and one of the founders of the IDE interface. WD employs approximately 23,000 people worldwide.

Western Digital Hard Drive

Western Digital Hard Drive (

The company's production facility is located in

WD Raptor and WD Caviar

And product names are respective companies

Blue represents mainstream hard drive products. The sense of stability given by blue represents the professionalism and reliability of Western Digital BLUE. Caviar Blue (Western Digital Caviar) and Scorpio Blue (Scorpio Blue) are the most commonly used series of 3.5-inch and 2.5-inch products, respectively. This series of hard disks can meet the demanding requirements of ordinary users for hard disk stability.

The blue disk is 7200 rpm, which is more balanced in all aspects. The measured performance is similar to the black disk. It is good for system disk and game storage. 3-year warranty. Common models are: WD1600AAJS, WD5000AAKS, WD10EALS, WD10EALX, WD3200BEVT, etc.

Green represents environmentally friendly hard disk products. Green represents the energy-saving and environmentally friendly hard drive in the 3.5-inch WD caviar series with its fresh and environmentally friendly metaphor. WD Green Drive with WD GreenPower technology provides quieter, environmentally friendly and low power storage solutions for consumers who are energy conscious.

Green disk 5400 rpm, low noise and energy saving, the disadvantage is poor performance. It is suitable for making warehouse disks to store movies and materials. 3-year warranty. Common models are: WD5000AADS, WD10EADS, WD10EADX, WD10EARS, WD10EVDS, etc.

Black represents the highest performance product. Black because of its professional top

Western Digital (WD) IDE hard drives include Caviar (Expert) and Experl (Expert) series, but the latter has long been discontinued. WD hard disks are basically divided into three categories: high-end BB series, mid-end AB series, and low-end EB series, of which only BB series hard drives are 7200 rpm products. Western Digital hard disk numbers usually consist of a main number and an additional number, but Western Digital does not disclose the specific meaning of the additional number to the retail market.

Western Digital's numbering format varies from product line to series, and the numbering method appears concise and clear, consisting of 12 numbers or letters. Among the 12 numbers, the first 6 numbers are the main numbers, and the next 6 numbers are the additional numbers. The labeling method of the main series of caviar on the desktop market is "manufacturer code + capacity + speed, cache + interface type".

Western Digital hard drive main number part

WD-XXXX-X-X

The first part "WD" is the abbreviation of "Western Digital", which means the products of Western Digital.

The second part usually consists of 3 to 4 digits, indicating the capacity, in units of 100M. Its logo is the same as that of Seagate, such as "1200" for 4 digits represents 120GB, and "800" for 3 digits represents 80GB

The English letters in the third part indicate the speed and buffer capacity. "A" indicates a caviar hard disk at 5400 RPM / min. "B" indicates a caviar hard disk at 7200 RPM / min. "E" indicates a Protege series hard disk with a rotation speed of 5400 RPM / min. "J" indicates a high-end caviar hard disk with a speed of 7200 RPM / min and a data cache of 8MB. "G" means the highest-end desktop hard disk Raptor series with a speed of 10,000 RPM / min and a data cache of 8MB.

The fourth part indicates the interface type. A--Ultra ATA66, B--Ultra ATA100, W indicates hard disks used in AV (digital video and audio) field, and D indicates Serial ATA150 interface.

Western Digital hard drive additional numbering section

XX-X-X-XX

The first part is the OEM customer identification, 00 is the retail market, and the other is the OEM customer code. If it is other characters, it is the code of the OEM customer, and different numbers correspond to different OEM customers, and hard disks of this number are usually not for the retail market.

Western Digital Hard Drive (20 photos)

The first character of the second part indicates the capacity of a single disc. "C" represents a single disc capacity of 40GB, "D" represents 66GB, and "E" represents 83GB. Corresponding to single-disc capacity, CP--Protg series (also known as EB series) 40GB single-disc capacity version, CB-Caviar 5400 series (ie AB series) 40GB single-disc capacity version, CA--Caviar7200 series (ie BB series) 40GB single-disc capacity version, CR--Caviar SE 7200 series (JB series with 8MB cache) 40GB single-disc capacity version.

The second character after the second part indicates the version code of the same series of hard disks. This code varies with different series. "A" indicates 7200 rpm, BB series of Ultra ATA100 interface; "B" indicates 5400 rpm, AB series of Ultra ATA66 interface; "P" indicates 5400 rpm, EB series of Ultra ATA100 interface; "R" "Means 7200 rpm, Ultra ATA100 interface, JB series with 8MB cache. In the single-disk 66GB and 83GB products, other letters such as "U" and "V" also appear, corresponding to the JB series and BB series products, respectively.

The fourth part is the firmware version of the hard disk. We currently have "F0" and "A0".