4-layer immersion gold PCB circuit board

ssd solid state drive meaning

The so-called SSD is a solid state drive. Hard drives are generally divided into two types, one is mechanical hard drives and the other is solid-state hard drives. Solid-state drives are hard drives made of solid-state electronic chip arrays. Generally speaking, they are composed of control units and storage units (FLASH chips). The interface specifications and definitions, functions and usage methods of solid-state drives are the same as those of ordinary hard drives. The shape and size are also consistent with ordinary hard drives. Its chip has a wide operating temperature range (-40~85℃);

Advantages of SSDs:

1. Fast read and write speed:

SSD does not use probes to read data, but logic circuits to read data, and the seek time is close to 0. The continuous reading and writing speed of SSD is very fast, generally more than 500MB/s in products on sale, while the mechanical hard disk is generally only 200MB/s. The random read and write speed of mechanical hard drives has been criticized for a long time, while the random read and write speed of SSD is very fast, which makes daily operations very smooth. The boot time of a computer using SSD can reach within 10s;

2. Good shock and fall resistance:

As the name suggests, the traditional mechanical hard disk is a mechanized structure, consisting of a magnetic disc, a rotating motor, a mechanical probe, etc. After a fall, the probe is easily dislocated, the motor is easily damaged, and the magnetic disc is easily scratched, so it is not resistant to falling. The SSD is composed of flash memory particles welded on the circuit board, there is no mechanical part, and the shock resistance is good;

3. Low power consumption:

A mechanical structure and a logic circuit, the machinery needs higher energy;

4. Zero noise:

When the mechanical hard disk is working, the motor will drive the disk to rotate, and the probe will touch the disk, which will make noise. SDD pure logic circuit, no noise.