Packaging
The Drive
The drive uses the M.2 2280 form factor, which makes it 22 mm wide and 80 mm long.
Like most M.2 NVMe SSDs, the MSI Spatium M390 connects to the host system over a PCI-Express 3.0 x4 interface.
On the PCB, you'll find the controller and two flash chips.
Chip Component Analysis
The Phison E15T is a brand-new controller that supports TLC NAND without DRAM cache, for cost optimizations. The bus interface is PCI-Express 3.0 x4 and supports NVMe 1.4.
The two flash chips are 176-layer 3D TLC NAND made by Micron.