How do I enable M2 on SSD?
In BIOS, go to Advanced settings, then go to Onboard Devices Configuration. Look for the PCI Express X4_3 Slot Bandwidth section and set the option to “M. 2 Mode“.

How do I know if my laptop supports m 2 SSD?

How do I know if my laptop supports m 2 SSD?
Go to the manufacturer’s website and search for the user manual of your machine. If it has an M2 slot, it will be described there.
Can laptop have 2 SSD slots?
Yes, they can support 2 for sure. However, this type of machine usually do not come with a Discrete card. Like LG Gram 15: Though they do not have an official declaration: They support 2 NVMe M2 2280 SSD.
Which M2 slot is faster?
NVMe stands for Non-Volatile Memory Express and that’s a standard that allows M. 2 drives to use PCI Express bandwidth, rather than the far slower SATA bandwidth. Using PCI Express bandwidth with NVMe drives, M. 2 SSDs can achieve the fastest SSD speeds available on the market, especially high-end PCI Express 4.0 SSDs.
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Is M2 faster than SSD?
2 SATA SSDs have a similar level of performance to mSATA cards, but M. 2 PCIe cards are notably faster. In addition, SATA SSDs have a maximum speed of 600 MB per second, while M. 2 PCIe cards can hit 4 GB per second.