By PURPLELEC | 03 November 2023 | 0 Comments
The difference between M.2 solid state drive and SSD solid state drive
SSD solid state drive (Solid State Drive) is a storage device based on flash memory technology for data storage. It usually uses flash memory chips as storage media. These chips can store data through NAND or MLC technology. The data reading method used by SSD solid state drives is random reading, rather than the sequential reading method of mechanical hard disks. This means that SSD solid state drives can quickly access stored data, making operations such as booting the operating system and opening files and applications faster.
M.2 solid state drive (M.2 SSD) is a solid state drive that uses the M.2 interface. The M.2 interface is a new type of storage device interface that can provide faster transmission speeds and higher performance. M.2 solid-state drives usually come in single-sided or double-sided designs. Single-sided designs are smaller and suitable for compact computer systems or mobile devices, while double-sided designs can provide higher storage capacity. In addition, M.2 solid-state drives also support a variety of flash memory technologies, including TLC, MLC, and SLC, as well as a variety of storage controllers and cache technologies, which can improve data reading and writing speed and reliability.
The differences between M.2 solid state drives and SSD solid state drives are as follows:
1. Appearance and interface type: M.2 solid state drive is smaller than SSD solid state drive. It usually exists in the form of key M, and its size is 22 mm wide and 80 mm long or smaller. SSD solid state drives usually have a 2.5-inch or 3.5-inch form factor, which is larger than M.2 solid state drives. In addition, M.2 solid-state drives usually use PCIe interface or SATA interface, while SSD solid-state drives usually use SATA interface.
2. Transfer speed: Since M.2 solid-state drives use the PCIe interface, their transfer speeds are usually faster than SSD solid-state drives. This means that M.2 SSDs can read and write data faster, improving overall system performance.
3. Power supply and heat: M.2 SSD uses a low-power PCIe interface, so it requires less power. Additionally, because an M.2 SSD is smaller, it generates less heat than an SSD.
4. Capacity and price: Although M.2 solid-state drives are smaller, their prices are usually higher than SSD solid-state drives because they use advanced technology. At the same time, SSD solid state drive usually has a larger capacity because it can accommodate more flash memory chips.
5. Compatibility: M.2 solid-state drives and SSD solid-state drives have certain compatibility issues. For example, some older motherboards may not support M.2 SSDs or the NVMe protocol, and some laptops may not have hard drive bays for SSDs.
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