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Hello everyone, in this lesson we will briefly introduce the M.2 hard disk and M.2 interface

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M.2 hard disk is a hard disk using M.2 interface

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At present, the hard disks we use are mainly divided into two types:

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One is M.2 hard drive, the other is SATA hard drive

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SATA hard drive is a more classic hard drive, while M.2 hard drive is a relatively new hard drive

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The appearance of the M.2 hard drive is shown in the lower right figure

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This is the M.2 hard drive of three different specifications

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It is relatively small in size, much smaller than the previous SATA hard disk, and does not take up space

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Moreover, the speed of M.2 hard disk is generally much faster than that of SATA hard disk.

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M.2 hard drives can also be divided into two types according to the protocol

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One is the M.2 hard disk using the SATA protocol,

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and the other is the M.2 hard disk using the Nvme protocol

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The speed of the M2 hard disk using the SATA protocol

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is not much different from that of the ordinary SATA hard disk

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The M.2 hard drive using the Nvme protocol is much faster

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At present, most of the M.2 hard drives on the market use the NVME protocol,

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that is, the PCIE channel.

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After getting to know the M.2 hard disk, let's get to know the M.2 interface

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The M.2 interface is very easy to find on the mainboard

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It is generally near the PCIE slot

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And it is generally placed horizontally on the mainboard

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So we can easily find the M.2 interface

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Most of the M.2 ports used on the mainboard support the Nvme protocol

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And many only support the Nvme protocol, not the SATA protocol

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So we must pay attention when installing the hard disk

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Whether the hard disk we use is SATA protocol or Nvme protocol, can this mainboard support it?

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And the M.2 interface is not the only one in the picture

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The common M.2 interface has two specifications

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One with the notch on the left and the other with the notch on the right

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Most of the current M.2 interfaces are the one with the notch on the right.

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The above is the simple understanding of M.2 interface and M.2 hard disk