Other Hard Disk Features
Standard HDDs are notable for their construction. The enclosure conceals a mechanism that utilises moving platters accompanied by hard disk heads that read and write the data. These mechanical parts are admittedly more sensitive to shocks, but this weak point is well-compensated by an excellent price/storage capacity ratio. The important criterion that determines the speed of a hard disk is the number of rotations per minute (RPM). With the WD Red 4TB, you can look forward to 5400 RPM revolutions per minute. This is a popular option for home PCs preferred by users who don't require high performance. File access speed and stability is also significantly affected by the disk buffer, usually called cache. The Western Digital platter drive includes a 256 MB cache that keeps the last written data for their speedy reading.