This is the latest addition to AAC Clyde Space's Sirius family of avionics equipment. The latest TCM offers increased reliability and high-performance for advanced small and nano-satellite missions. The real-time operating system runs on a LEON3FT fault-tolerant soft processor, is compliant to IEEE 1754 SPARC v8, and provides enhanced error detection and correction. Fault tolerance is secured by using triple-modular redundancy on FPGA and memory scrubbing.