A credit-card-sized single-board computer designed to operate in Low Earth Orbit (LEO) environments with integrated communications and security features. The module features a quad-core processor, error-correcting code memory, mass storage, redundancy and multiple data interfaces  in a compact form-factor.

The Cesium SBC-1461 includes a software development kit for a Linux-based Operating System (OS) providing a fast out of the box solution.

Use as a stand-alone computer or combine with other Cesium modules for additional computational power, security, and system monitoring and control.


  • Compact 50mm x 84mm x 13mm packaged form-factor

  • 1.8 GHz ARM® 64-bit quad-core Cortex® 

  • Traffic routing and encryption without loading the cores

  • Integrated security engine

  • 2GB SDRAM with ECC (option for 4GB or higher)

  • 8GB non-volatile eMMC storage

  • Redundant 64MB boot flash  with automatic failover

  • On-board telemetry: temperature, rail voltages, real-time clock

  • IEEE 1588 Precision Time Protocol

  • Linux Kernel, Ubuntu-based OS (option for VxWorks®), GNU Toolchain

  • U-boot with Secure boot

  • Suitable for both military and commercial applications on LEO satellites and airborne platforms

  • Thermal pillars bring heat to flat surface


  • 2x 10GBASE-KR (configurable as SGMII)

  • 2x 1000BASE-T

  • 1x 100BASE-TX

  • 1x SGMII

  • 2x USB 3.0

  • SPI with 2x Chip Select

  • UART



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