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 Lexar NM610 connects to the host system over a PCI-Express 3.0 x4 interface.
On the PCB, you'll find the controller and four flash chips; DRAM cache is not available.
Chip Component Analysis
We've encountered the Silicon Motion SM2263XT controller on several M.2 SSDs before. It is a fairly recent model with four flash channels, solid performance, and support for DRAM-less TLC.
The four flash chips are Micron 64-layer 3D TLC NAND; they have been rebranded by Lexar and now look a little bit like Toshiba chips. Each chip has a capacity of 256 GB.