What is the m.2 interface for?

The "m.2" interface is used to install solid-state drives; the "m.2" interface is an interface specification that replaces MSATA. The "m.2" on the motherboard is a solid-state drive interface that can Compatible with multiple communication protocols, such as SATA, PCIe, USB, HSIC, UART, SMBus, etc.

The operating environment of this tutorial: Windows 10 system, DELL G3 computer.

What is the m.2 interface for?

The M.2 on the motherboard is the solid-state drive interface, which is used to install solid-state drives.

The M.2 interface is a new interface specification introduced by Intel to replace MSATA. In fact, for desktop computer users, the SATA interface is sufficient to meet the needs of most users. However, taking into account the storage needs of Ultrabook users, this new interface standard was introduced.

The M.2 interface is a new host interface solution that is compatible with multiple communication protocols, such as sata, PCIe, USB, HSIC, UART, SMBus, etc.

The M.2 interface is a new generation interface standard tailored for Ultrabooks to replace the original mSATA interface. Whether it is smaller size or higher transmission performance, M.2 is far better than mSATA.

Two different types of m.2 interfaces have different transmission speeds. The first type of M.2 SATA: The read and write speed is similar to that of a 2.5-inch SSD, only the interface is different. The second type of M.2 NVMe: read and write speeds exceed 1GB/s, up to 5GB/s.

The M.2 NVMe interface protocol has a better experience in reading and writing speed. There is no doubt that a solid-state drive with an m.2 interface will be better. If you have a limited budget and don’t have too many requirements for reading and writing speed, it doesn’t matter if it’s a little slower, and the interfaces of SATA and m.2sata can also meet personal storage needs.

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m.2 Naming rules for interfaces

Because there are There are M.2 interfaces of various sizes and functions, so a standard naming rule needs to be specified to divide these interfaces.

The naming of the M.2 interface mainly follows the following principles:

1. Adapter size. (Length and width)

2. The maximum Z-axis height from the top to the bottom of the adapter.

3. The location of the Mechanical Connector Key.

The naming rules clearly describe the function of the interface, the required connectors, and the z-axis height. The width of the connector must be one of 12mm, 16mm, 16.5mm, 20mm, 22mm, 28mm, or 30mm. The length of the connector must be one of 16mm, 20mm, 24mm, 26mm, 28mm, 30mm, 42mm, 60mm, 80mm, and 110mm. All other sizes are illegal.

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