400 Series uDOM M.2

The Cactus Technologies 400 Series Industrial Grade M.2 2242 uDOM (USB Disk On Module), available in capacities of 2 and 4 Gbytes, is a rugged, highly reliable, high endurance, solid-state flash memory product with an industry standard USB 3.1 interface. It is intended for OEM applications needing a high endurance part with high performance or requiring the optional full extended temperature range of -45C to +90C.

The 400 Series Industrial Grade M.2 uDOM is SLC NAND based and comes with full BOM Control, Long Life Cycles and is built with Stringent Quality Processes. Cactus Technologies incorporates Industrial Grade ECC, Wear Leveling, Write Abort Protection Circuitry and Defect Management into the product, making it the most reliable USB Disk On Module available. Custom Labeling, Custom ID and Preloaded Content are available based on customer requirements (see Custom Features).


2GB - 4GB
Form factor
M.2 2242 uDOM
Memory type
Pin versions
Socket 2 pinout with B+M keys
Endurance cycles
>2 Million
MTBF (Hours)
4 Million
5 Years
Standard temperature
0°C to 70°C
Extended temperature
-45°C to 90°C
Sequential read
Sequential write


  • Solid state design with no moving parts
  • Capacities 2GB and 4GB
  • Sustained Reads up to 55MB/sec
  • Sustained Writes up to 30MB/sec
  • Uses M.2 2242, Socket 2 pinout with B+M keys connector
  • Compliant with USB 3.1 / 3.0 / 2.0 specs
  • Unique Electronic Card ID
  • Supports booting from USB device
  • 4 Million Hour MTBF
  • Zero dB Noise
  • Enhanced error checking and correction (ECC)
  • RoHS Compliant
  • 5 Year Warranty