M.2 is the best SSD type on the market thus far.
Modern day motherboards will often include a M.2 slot.
Can allow for 4 GB/s throughput
Slot Keys
| Key ID | Pin Location | Interface |
|---|---|---|
| A | 8-15 | 2x PCIe x1 / USB 2.0 / I2C / DP x4 |
| B | 12-19 | PCIe x2 / SATA /USB 2.0 / USB 3.0 / HSIC / SSIC / Audio / UIM / I2C |
| C | 16-23 | Reserved for Future Use |
| D | 20-27 | Reserved for Future Use |
| E | 24-31 | 2x PCIe x1 / USB 2.0 / I2C / SDIO / UART / PCM |
| F | 28-35 | Future Memory Interface (FMI) |
| G | 39-46 | Not Used for M.2; for Custom/Non-Standard Apps |
| H | 43-50 | Reserved for Future Use |
| J | 47-54 | Reserved for Future Use |
| K | 51-58 | Reserved for Future Use |
| L | 55-62 | Reserved for Future Use |
| M | 59-66 | PCIe x4 / SATA |
Size Variation
The first 2 numbers ‘22’ represent the width in mm, the second 2 numbers - for example ‘60’, represent the length in mm.