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Classification of M.2 SSD Enclosures

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Author : PURPLELEC
Update time : 2023-11-03 11:57:26
  According to different compatibility protocols, there are three main types of hard drive enclosures commonly available on the market:
  SATA M.2 hard disk enclosure, the transmission speed is about 450MB/S, the price of this type of product is within 60 yuan, and it is highly cost-effective;
  NVMe M.2 hard disk enclosure supports transmission rates ranging from 10 to 40Gbps, and is more expensive than SATA models;
  Dual-protocol M.2 hard drive enclosure, compatible with SATA and NVMe dual protocols, suitable for hard drives with more specifications;
  Since NVMe is a standard interface protocol developed for PCle, it has the advantages of low latency, low power consumption, high performance, large capacity, etc., and NVMe M.2 hard disk enclosures have obvious advantages in speed compared to SATA interface products, and have gradually become Popular choice among users.
M.2 SSD Enclosures
  Depending on the interface configuration and transmission rate, NVMe M.2 hard disk enclosures are divided into the following categories:
  USB3.1 Gen2 model: The theoretical speed reaches 10Gbps, and about 1GB file can be transferred in 1 second;
  USB3.2 Gen2x2 model: The theoretical speed reaches 20Gbps, and about 2GB files can be transferred in 1 second;
  Thunderbolt 3 model: The theoretical rate is 40Gbps, about 2.5GB files can be transferred in 1 second, and it supports the use of Thunderbolt 3 interface laptops/desktops;
  USB4 model: theoretical rate 40Gbps, compatible with all versions of USB protocols and Thunderbolt 3/Thunderbolt 4 protocols.
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