Packaging

The Drive

The drive uses the M.2 2280 form factor, which makes it 22 mm wide and 80 mm long.


While most other M.2 NVMe SSDs transfer data over the PCI-Express 3.0 x4 interface, the Spatium M450 connects to the host system over a PCI-Express 4.0 x4 interface, which doubles the theoretical bandwidth.


On the PCB, you'll find the controller and two flash chips. A DRAM cache chip is not available.

Chip Component Analysis

The Phison E19T is a brand-new controller that supports TLC NAND without DRAM cache for cost optimizations. The bus interface is PCI-Express 4.0 x4 and supports NVMe 1.4. The chip is fabricated on a 28 nanometer process by TSMC Taiwan. It's a 4-channel design with just one processor core (Arm Cortex R5)


The two flash chips are 176-layer 3D TLC NAND made by Micron.