M.2 is a solid-state drive (SSD) form factor primarily used as an operating system boot solution. Lenovo Think System servers support M.2 drives either with the addition of a upported M.2 adapter or directly on the system board. On the Think System SR150, SR250 & ST250, a single M.2 drive is installed directly on the system board. On all other support Think System servers, the M.2 drives install into an M.2 adapter which in turn is installed in a dedicated slot on the system board of the server. With two M.2 drives configured, the drives are configured by default as a RAID-1 mirrored pair for redundancy.
- Single M.2 Adapter, which supports one M.2 drive; available as the Think System M.2 Enablement Kit
- Dual M.2 Adapter, which supports one or two M.2 drives; available as the Think System M.2 with Mirroring Enablement Kit A Dual M.2 Adapter with one 128GB M.2 drive partially inserted is shown in the following figure. The second M.2 drive is installed on the other side of the adapter.