Scalp sensitivity has several origins. It could be caused by an imbalance in the sebum secretion process, which leads to irritation. Pollution and stress can also irritate the scalp. In fact, pollution coats the hair in harmful elements that create a dull film over the hair and, like stress, generate free radicals.
Hard drive sizes. Hard drives come in two basic physical sizes: 2.5-inch and 3.5-inch. These sizes refer to the size of the data platters, not the size of the hard drive mechanism. Traditionally, 2.5-inch drives are used for laptops while 3.5-inch drives are used for desktop computers. Some compact desktops also use the smaller drives to enable a smaller form factor for the computer.
1-16 of 2,821 results for laptop hard drive types. 1  Insten Dual USB 3.0 Type A to Micro-B USB Y Shape Hi Speed Cable External Hard Drives for Seagate/Toshiba/WD/Hitachi... 2  Crucial MX300 525GB SATA 2.5 Inch Internal Solid State Drive - CT525MX300SSD1. 3  Crucial MX300 1TB SATA 2.5 Inch Internal Solid State Drive - CT1050MX300SSD1.