Packaging

The Drive

The drive uses the M.2 2280 form factor, making 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 ADATA Atom 50 connects to the host system using PCI-Express 4.0 x4, doubling the theoretical bandwidth.


On the PCB you'll find the controller and four flash chips, a DRAM cache chip is not present.


As mentioned before, the heatsink isn't preinstalled, which makes it easy to fit the drive into a notebook or onto a motherboard with its own cooling solution. Installing the heatsink is super easy, just peel off the paper and stick it on.

Chip Component Analysis

The Silicon Motion SM2269XT F is a relatively new controller design, with support for PCI-Express 4.0. It's built using a 12 nm process at TSMC Taiwan. The controller is targeted at cost-optimized designs, with four flash channels, and has support for DRAM-less operation, HMB, TLC/QLC NAND, and NVMe 1.4.


The four flash chips are Micron 176-layer 3D TLC NAND. Each chip has a capacity of 512 GB.