803 Series microSD

The Cactus Technologies 803 Series Industrial Grade microSD Card, available in capacities from 1 to 4 Gbytes, is a rugged, small form factor, reliable, high endurance, solid-state flash memory product adhering to the SD Associations microSD specification. It is intended for OEM applications needing a small form factor, high endurance part with high performance or requiring the optional full extended temperature range of -45C to +90C.

The 803 Series Industrial Grade microSD Card 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 microSD Card available. Custom Labeling, Custom ID and Preloaded Content are available based on customer requirements (see Custom Features).


1GB – 4GB
Memory type
Endurance cycles
>2 Million
MTBF (Hours)
4 Million
5 Years
Standard temperature
-25°C to 85°C
Extended temperature
-45°C to 90°C
Sequential read
Sequential write
3000 / 20
Pro feature set
SMART feature


  • Industry Standard SDA Version 1.1 and 2.0
  • Card Capacities 1GB to 4GB
  • Supports CPRM
  • Supports SPI Mode
  • Voltage Range: 2.7V – 3.6V
  • Unique Electronic Serial Card ID
  • Sustained Reads up to 20MB/sec
  • Sustained Writes up to 17MB/sec
  • Solid State Design With No Moving Part
  • Zero dB Noise
  • 4 Million Hour MTBF
  • RoHS Compliant
  • 5 Year Warranty

Cactus Part Numbers

The 803 Series microSD matches the these part numbers. If you are interested in any of these part numbers, please Contact a Cactus Expert.

  • KS1GRIT-803M
  • KS1GRT-803M
  • KS2GRIT-803M
  • KS2GRT-803M
  • KS4GRIT-803M
  • KS4GRT-803M

Back to our Industrial Grade microSD Card page for more general information.