Are Both M 2 Slots the Same?

M 2 is the next generation interface for connecting SSDs to PCs and laptops. It is the successor to the mSATA interface, which was the previous standard for connecting SSDs to devices.

M 2 offers a number of advantages over mSATA, including faster data transfer speeds, lower power consumption, and a smaller form factor.

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While mSATA SSDs are still available, M 2 has quickly become the preferred interface for new devices. If you’re looking to upgrade your PC or laptop with an SSD, you’ll need to make sure it has an M 2 slot.

So, are both M 2 slots the same? The answer is no. There are two different types of M 2 slots: B+M keys and B keys.

B+M keyed M 2 slots can accommodate both SATA and PCIe based M 2 drives, while B keyed M 2 slots are only compatible with PCIe based M 2 drives.

If your device only has a B keyed M 2 slot, you’ll need to purchase a PCIe based M 2 drive. These drives are typically more expensive than SATA based M 2 drives, but they offer much faster data transfer speeds.