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 WD Blue SN570 connects to the host system over a PCI-Express 3.0 x4 interface.
The PCB is almost empty, it's just two chips: the controller and one NAND flash package; the other side of the PCB is completely empty.

Chip Component Analysis

Almost nothing is known about this SanDisk 20-82-10023-A1 SSD controller. It is a four-channel design, which obviously supports TLC and DRAM-less operation.


The single flash chip is Toshiba's latest BiCS5 112-layer TLC NAND with a capacity of 8 Tbit, or 1 TB.