Look at the number to identify the true and false Western Digital Hard Drive

Computer Shop News Part 1: Composed of WD, representing the abbreviation of Western Digital.

Part 2: Consists of three or four digits representing the capacity of the hard drive. Before the hard disk capacity does not exceed 100GB, the number of digits in the middle of the Western Digital hard disk model is only 3 digits, such as WD600BB. The middle 600 represents the capacity of the hard disk is 60GB. Since the hard disk capacity reaches 100GB, the Western Digital hard disk model The number in the middle has risen to four. The third part: consists of a letter, which represents the speed of the hard disk. A represents a caviar hard drive with a rotational speed of 5400 RPM; B represents a caviar hard drive with a rotational speed of 7200 RPM; E represents a Protege series hard drive with a rotational speed of 5400 RPM; and J represents a high-end caviar hard drive from Western Digital. The fourth part: consists of a letter, which represents the interface type of the hard disk. A stands for Ultra ATA/66 or earlier interface type; B stands for Ultra ATA/100; W stands for the Western Digital Hard Drive which is used in A/V (Digital Video). The above identification method is not available on all Western Digital hard disks, but these "unconventional" Western Digital hard drives are not many, so it does not cause too much confusion for users to identify Western Digital hard drives. The most special model is WD1000BB-SE. According to the Western Digital hard disk identification method described above, we can quickly guess that this hard disk is a caviar with a product capacity of 100GB, a spindle speed of 7200RPM, and an interface type of Ultra ATA/100. Sauce series hard drive, but what does the last ""-SE“ mean? In fact, the full name of SE in English is Special Edition, which means the special version. This is the hard disk model number used by Western Digital when it introduced the world's first 8MB cached version of IDE hard disk. Later Western Digital Company considered such numbering and regular numbering. The method does not match, so the WD1000BB-SE is renamed WD1000JB. That is to say, the two hard disks are actually the same hard disk, and users should pay special attention when purchasing or identifying the Western Digital hard disk. Due to the replacement of the hard drive model numbering method, when Western Digital Company introduced the world's second 8MB cache version of the IDE hard disk (ie special edition WD1200BB), it was naturally named WD1200JB.