The M.2 interface also has a name of NGFF, but the latter generally refers to Socket 2, which is the M.2 board type in which the gold finger has two grooves.
Just as M.2 replaced MSATA, thanks to the further development of 3D flash technology, it is possible to further reduce the size of SSD, so Samsung proposed the NGSFF (Next Generation Small Form Factor) specification. Capacity 2T~16TB , where enterprise storage servers are the first to apply.
'M.3' contrast M.2
According to AKIBA, Japan's Akihabara has already sold SSDs with related interfaces, and even has 36 ATB SB127-LX storage arrays with 4TB SSD (144TB).
ADATA has called this type of SSD 'M.3 interface', but it has not yet formed a broad consensus. The advantage is that the capacity density is four times that of the M.2 SSD array.
Performance, The highest continuous read and write in the 32 queues is close to 5GB/s, and it is definitely the PCIe 3.0 x8 channel..
The price is very high, and the 4TB module is the cheapest, 300,000 yen. About RMB 18,400.
