M.2 is a solid-state drive (SSD) form factor primarily used as an operating system boot solution however depending on the endurance of the M.2 drives, they may also be suitable for read-intensive or mixed workloads.Lenovo ThinkSystem servers support M.2 drives in one of three ways, depending on the server selected:- One or two drives, mounted in an M.2 adapter, vertically in a dedicated slot- Two or four drives, mounted horizontally in an M.2 adapter- Installed directly on the system boardOne example is the Dual M.2 Adapter, as shown in the following figure, with one 128GB M.2 drive partially inserted. The second M.2 drive is installed on the other side of the adapter.
Performance
Interface
Serial ATA III
Component for
Server/workstation
SSD capacity
240 GB
Read speed
540 MB/s
Write speed
310 MB/s
Random read (4KB)
67000 IOPS
Random write (4KB)
40000 IOPS
Read latency
500 µs
Write latency
500 µs
NVMe
No
TBW rating
657
Design
Component for
Server/workstation
SSD form factor
M.2
Features
Interface
Serial ATA III
Component for
Server/workstation
SSD capacity
240 GB
Read speed
540 MB/s
Write speed
310 MB/s
Random read (4KB)
67000 IOPS
Random write (4KB)
40000 IOPS
Read latency
500 µs
Write latency
500 µs
NVMe
No
TBW rating
657
SSD form factor
M.2
Harmonized System (HS) code
84717070
Technical details
Interface
Serial ATA III
SSD form factor
M.2
Weight & dimensions
Weight
0.353 oz (10 g)
Logistics data
Harmonized System (HS) code
84717070
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Lenovo 4XB7A17071 internal solid state drive M.2 240 GB Serial ATA III