What is the difference between solid state drive and mobile hard drive?

What is the difference between solid state drive and mobile hard drive?

Mobile hard drives refer to hard disk storage that uses a USB interface and can be plugged in or out at any time, and is small and easy to carry, while solid state drives refer to hard drives made of solid-state electronic storage chip arrays. , generally used in assembling desktop computers.

Advantages of Solid State Drive

• Fast reading and writing speed: Using flash memory as the storage medium, the reading speed is faster than that of a mechanical hard drive. SSDs do not use magnetic heads and their seek time is almost zero. The sustained writing speed is very amazing. Most SSD manufacturers will claim that their SSDs’ sustained reading and writing speed exceeds 500MB/s! The speed of solid-state drives is not only reflected in continuous reading and writing. Fast random reading and writing is the ultimate secret of solid-state drives, which is most directly reflected in most daily operations. Related to this is extremely low access time. The seek time of the most common 7200-rpm mechanical hard drive is generally 12-14 milliseconds, while solid-state drives can easily reach 0.1 milliseconds or even lower. [5]

• Shockproof and drop resistance: Traditional hard drives are disk-type, and data is stored in disk sectors. The SSD is made of flash memory particles (i.e. MP3, U disk and other storage media), so there are no mechanical parts inside the SSD solid state drive, so it will not affect normal operation even when moving at high speed or even with flipping and tilting. use, and can minimize the possibility of data loss in the event of collisions and shocks. Compared with traditional hard drives, solid-state drives have absolute advantages. [5]

• Low power consumption: The power consumption of solid-state drives is lower than that of traditional hard drives.

• Noiseless: SSDs have no mechanical motors and fans, and the noise level is 0 decibels when working. Flash memory-based SSDs consume less energy and generate less heat during operation (but high-end or large-capacity products will consume more energy). There are no mechanical moving parts inside, there will be no mechanical failure, and there is no fear of collision, impact, or vibration. Because SSDs use flash memory chips with no mechanical parts, they have the characteristics of low heat generation and fast heat dissipation. [5]

• Wide operating temperature range: Typical hard drives can only operate within the range of 5 to 55 degrees Celsius. Most solid-state drives can operate at -10~70 degrees Celsius. Solid-state drives are smaller and lighter than mechanical hard drives of the same capacity. The interface specifications and definitions, functions and usage of solid-state drives are the same as those of ordinary hard drives, and the product appearance and size are also consistent with ordinary hard drives. The operating temperature range of its chip is very wide (-40~85 degrees Celsius).

• Lightweight: Solid state drives are lighter in weight, 20-30 grams lighter than regular 1.8-inch hard drives.

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