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 NM620 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.
Chip Component Analysis
The prominent markings say this is a flash controller made my Lexar, called DM620. Actually we've identified several factors, in addition to the physical size and design, that led us to believe this is a rebranded Innogrit IG5216 controller. It has four flash channels and supports the NVMe 1.4 specification.
The device ID has actually been adjusted to match the Lexar/Longsys branding, 1D97 is "Shenzen Longsys Electronics Co., Ltd."
The four 64-layer 3D TLC flash chips are made by Micron. NW964 decodes to MT29F1T08EMCAGJ4.